Exhibit 10(a)

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                                CREDIT AGREEMENT

                                      among

                           KNIGHT TRANSPORTATION, INC.
                        and its Significant Subsidiaries


                             THE BANKS NAMED HEREIN


                     WELLS FARGO BANK, NATIONAL ASSOCIATION
                             as Administrative Agent
                                       and
               as Issuing Bank, as Arranger, as Swing Line Lender
                                       and
                                    as a Bank

                                       and

                           THE NORTHERN TRUST COMPANY
                                    as a Bank




                            Dated as of April 6, 2001


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                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

ARTICLE I       DEFINITIONS....................................................2
  SECTION 1.1   Defined Terms..................................................2
  SECTION 1.2   Terms Generally...............................................10

ARTICLE II      THE RLC FACILITY..............................................11
  SECTION 2.1   The RLC Commitment............................................12
  SECTION 2.2   [Intentionally left blank]....................................12
  SECTION 2.3   Procedures for Borrowings Under the RLC Facility..............12
  SECTION 2.4   Revolving Loans...............................................13
  SECTION 2.5   Reborrowings..................................................14
  SECTION 2.6   Fees..........................................................14
  SECTION 2.7   Notes; Repayment of Revolving Loans...........................15
  SECTION 2.8   Interest on Revolving Loans...................................15
  SECTION 2.9   Default Interest..............................................15
  SECTION 2.10  Termination and Reduction of Commitments......................16
  SECTION 2.11  Conversion and Continuation of Borrowings.....................16
  SECTION 2.12  Prepayment....................................................17
  SECTION 2.13  Reserve Requirements; Change in Circumstances.................17
  SECTION 2.14  Change in Legality............................................19
  SECTION 2.15  Redeployment Loss.............................................20
  SECTION 2.16  Pro Rata Treatment............................................21
  SECTION 2.17  Sharing of Setoffs............................................21
  SECTION 2.18  Payments......................................................22
  SECTION 2.19  Taxes.........................................................22
  SECTION 2.20  Termination or Assignment of Commitments Under Certain
                Circumstances.................................................24
  SECTION 2.21  Security Interest.............................................25
  SECTION 2.22  Swing Line Loans..............................................25

ARTICLE IIA     LETTERS OF CREDIT.............................................28
  SECTION 2A.1  Letters of Credit.............................................28
  SECTION 2A.2  Notice........................................................28
  SECTION 2A.3  Letter of Credit Participations...............................28
  SECTION 2A.4  Disbursement and Reimbursement................................29
  SECTION 2A.5  Existing Letters of Credit....................................30

ARTICLE III     REPRESENTATIONS AND WARRANTIES................................32
  SECTION 3.1   Organization; Corporate Powers; Etc...........................32
  SECTION 3.2   Authorization; Etc............................................32
  SECTION 3.3   Enforceability................................................32
  SECTION 3.4   Financial Condition and Information...........................32
  SECTION 3.5   No Material Adverse Change....................................33

  SECTION 3.6   Litigation....................................................33
  SECTION 3.7   Federal Reserve Regulations...................................33
  SECTION 3.8   Investment Company Act........................................33
  SECTION 3.9   Public Utility Holding Company Act............................33
  SECTION 3.10  Tax Returns...................................................34
  SECTION 3.11  ERISA.........................................................34
  SECTION 3.12  Title to Properties: Possession...............................34
  SECTION 3.13  Use of Proceeds...............................................34
  SECTION 3.14  Environmental Matters.........................................34
  SECTION 3.15  Subsidiaries..................................................34
  SECTION 3.16  No Subordination..............................................34
  SECTION 3.17  Permits, Franchises...........................................35
  SECTION 3.18  Other Obligations.............................................35

ARTICLE IV      CONDITIONS TO CREDIT EVENTS...................................36
  SECTION 4.1   Credit Events.................................................36
  SECTION 4.2   First Credit Event............................................36

ARTICLE V       AFFIRMATIVE COVENANTS.........................................38
  SECTION 5.1   Corporate Existence...........................................38
  SECTION 5.2   Insurance.....................................................38
  SECTION 5.3   Taxes and other Liabilities...................................38
  SECTION 5.4   Financial Statements; Reports, etc............................38
  SECTION 5.5   Litigation and Other Notices..................................39
  SECTION 5.6   Maintaining Records: Access to Premises and Records...........40
  SECTION 5.7   Use of Proceeds...............................................40
  SECTION 5.8   Punctual Payments.............................................40
  SECTION 5.9   Compliance....................................................40
  SECTION 5.10  Facilities....................................................40
  SECTION 5.11  Financial Covenants...........................................40
  SECTION 5.12  New Subsidiaries; Co-Borrower.................................41

ARTICLE VI      NEGATIVE COVENANTS............................................42
  SECTION 6.1   Liens.........................................................42
  SECTION 6.2   Indebtedness..................................................42
  SECTION 6.3   Merger, Consolidation, Transfer of Assets.....................42
  SECTION 6.4   Accounting Change.............................................43
  SECTION 6.5   Guarantee.....................................................43
  SECTION 6.6   ERISA Liabilities.............................................43
  SECTION 6.7   Capital Expenditures..........................................43
  SECTION 6.8   Loans, Advances, Investments..................................43
  SECTION 6.9   Dividend, Distributions.......................................43

ARTICLE VII     EVENTS OF DEFAULT.............................................44

                                        2

ARTICLE VIII    THE ADMINISTRATIVE AGENT......................................47
  SECTION 8.1   Appointment...................................................47
  SECTION 8.2   Liability.....................................................47
  SECTION 8.3   Action by Administrative Agent................................48
  SECTION 8.4   Resignation...................................................48
  SECTION 8.5   Agent as Bank.................................................48
  SECTION 8.6   Determinations................................................48
  SECTION 8.7   Indemnification...............................................49
  SECTION 8.8   Independent Credit Analysis...................................49

ARTICLE IX      MISCELLANEOUS.................................................50
  SECTION 9.1   Notices.......................................................50
  SECTION 9.2   Survival of Agreement.........................................50
  SECTION 9.3   Binding Effect; Beneficiaries.................................50
  SECTION 9.4   Successors and Assigns........................................51
  SECTION 9.5   Expenses; Indemnity...........................................53
  SECTION 9.6   Right of Setoff...............................................54
  SECTION 9.7   Applicable Law................................................55
  SECTION 9.8   Waivers; Amendment............................................55
  SECTION 9.9   Interest Rate Limitation......................................55
  SECTION 9.10  Entire Agreement..............................................56
  SECTION 9.11  Severability..................................................56
  SECTION 9.12  Counterparts and Signature Pages..............................56
  SECTION 9.13  Headings......................................................56
  SECTION 9.14  Arbitration...................................................56
  SECTION 9.15  Jurisdiction; Consent to Service of Process...................58
  SECTION 9.16  Waiver of Jury Trial..........................................59
  SECTION 9.17  Non-Debtor Borrower Provisions................................59
  SECTION 9.18  Confidentiality...............................................60

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LIST OF EXHIBITS AND SCHEDULES

Exhibit "A"     -   Form of Assignment and Acceptance
Exhibit "B"     -   Form of Borrowing Notice
Exhibit "C"     -   Revolving Credit Note (RLC Facility)
Exhibit "C-1"   -   Swing Line Note
Exhibit "D"     -   Administrative Details Reply Form
Exhibit "E"     -   Matters to be Covered by the Legal Opinion of Counsel
Exhibit "F"     -   Form of Quarterly Compliance Certificate
Exhibit "G"     -   Assumption Agreement
Exhibit "H"     -   Security Agreement

Schedule 2.1    -   Commitments of Banks
Schedule 2A.5   -   Existing Letters of Credit
Schedule 3.15   -   Borrower's Subsidiaries
Schedule 6.1    -   Permitted Liens
Schedule 6.2    -   Existing Indebtedness

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                                CREDIT AGREEMENT

     BY THIS CREDIT  AGREEMENT  (together with any amendments or  modifications,
the  "Agreement"),  entered  into  as of  April  6,  2001  by and  among  KNIGHT
TRANSPORTATION,  INC., an Arizona  corporation (the "Company"),  all present and
future  Significant   Subsidiaries  (as  hereinafter  defined)  of  the  Company
(together with the Company,  the  "Borrower"),  the banks listed in Schedule 2.1
(the "Banks"),  WELLS FARGO BANK, NATIONAL ASSOCIATION,  as administrative agent
for the Banks (in such  capacity,  together with any successor  agent  appointed
hereunder,   the  "Administrative  Agent"),  as  Issuing  Bank  (as  hereinafter
defined),  as Arranger, as a Bank and as the Swing Line Lender, and THE NORTHERN
TRUST COMPANY, an Illinois banking  corporation,  as a Bank, in consideration of
the mutual promises herein contained and for other valuable  consideration,  the
parties hereto do agree as follows:

                                    RECITALS

     A. The  Borrower  has asked  that the  Banks  provide  a  revolving  credit
facility (the "RLC Facility") in the maximum  principal amount of $50,000,000.00
to Borrower for working capital purposes, of which an amount up to the Letter of
Credit  Commitment  may be applied  to the  issuance  of one or more  Letters of
Credit.

     B. The Banks are  willing to extend  such  credits to the  Borrower  on the
terms and subject to the conditions herein set forth.

     C.  Effective as of the delivery of this  Agreement,  the Credit  Agreement
dated  November 24, 1999  between the  Borrower  and Wells Fargo Bank,  National
Association  (the "1999  Agreement")  will be  terminated  and  replaced by this
Agreement.

     Accordingly,  the Borrower,  the Banks,  the  Administrative  Agent and the
Issuing Bank agree as follows:

                                    ARTICLE I
                                   DEFINITIONS

     SECTION 1.1 DEFINED TERMS.  Although terms may be defined elsewhere in this
Agreement,  as used in this  Agreement,  the  following  terms  shall  have  the
meanings specified below:

     "Administrative  Agent" shall have the meaning assigned to such term in the
Preamble, and any successor thereto.

     "Administrative  Details Reply Form" shall mean an  Administrative  Details
Reply Form in the form of Exhibit "D".

     "Affiliate"  shall  mean,  when used with  respect to a  specified  person,
another person that directly,  or indirectly through one or more intermediaries,
Controls  or is  Controlled  by or is  under  common  Control  with  the  person
specified.

     "Agreement" shall mean this Credit  Agreement,  as amended or modified from
time to time.

     "Applicable Interest Rate" with respect to a given Borrowing shall mean the
interest rate in effect for that Borrowing as determined pursuant to Section 2.8
herein.

     "Applicable Margin" shall mean the following:

                          LIBOR                    Base Rate
                         Borrowing                 Borrowing
                         ---------                 ---------
                     62.5 basis points           0 basis points

     "Assignment and Acceptance" shall mean an assignment and acceptance entered
into by a Bank and an assignee,  accepted by the  Administrative  Agent,  in the
form of Exhibit "A".

     "Average  Adjusted  Daily  Undrawn  Balance"  shall equal the average daily
unused amount of the Total Commitment during the preceding calendar quarter. For
this  purpose,  the Letter of Credit  Balance shall be deemed to be a use of the
Total Commitment.

     "Banks," each a "Bank": See the Preamble.

     "Base Rate" shall mean the Prime Rate.

     "Base Rate  Borrowing"  shall mean a Borrowing  bearing  interest at a rate
determined by reference to the Base Rate.

     "Board" shall mean the Board of Governors of the Federal  Reserve System of
the United States.

                                       2

     "Borrower": See the Preamble.

     "Borrowing"  shall  mean  an  outstanding  principal  amount  of one of the
Revolving  Loans as to which a single  Interest  Period  is in  effect  and with
respect to which a single Applicable Interest Rate applies.

     "Borrowing  Notice"  shall mean a notice given  pursuant to Section 2.3, as
therein described.

     "Business  Day" shall mean any day (other  than a day which is a  Saturday,
Sunday or legal  holiday in the State of Arizona or in the State of  California)
on which commercial banks are open for business in Phoenix,  Arizona;  PROVIDED,
HOWEVER,  that,  when  used in  connection  with a  LIBOR  Borrowing,  the  term
"Business Day" shall exclude any day on which banks are not open for dealings in
Dollar deposits in the London interbank market.

     "Capital  Lease"  shall  mean any  lease  of any  property  (whether  real,
personal or mixed)  required by GAAP to be accounted  for as a capital  lease on
the balance sheet of the lessee.

     "Capital  Lease  Obligations"  of any Person shall mean the  obligations of
such  Person  to pay  rent  or  other  amounts  under  any  lease  of (or  other
arrangement  conveying  the  right  to use)  real  or  personal  property,  or a
combination  thereof,  which  obligations  are  required  to be  classified  and
accounted  for as capital  leases on a balance  sheet of such person  under GAAP
and, for the purposes of this Agreement,  the amount of such  obligations at any
time  shall  be the  capitalized  amount  thereof  at such  time  determined  in
accordance with GAAP.

     A "Change in Control"  shall be deemed to have  occurred if, after the date
hereof,  (a) any person or group (within the meaning of Rule 13d-3, as in effect
on the date hereof,  promulgated by the SEC under the 1934 Act),  shall acquire,
directly or indirectly, beneficially or of record, shares representing more than
50% of the  aggregate  ordinary  voting  power  represented  by the  issued  and
outstanding  capital stock of the  Borrower;  (b) a majority of the seats (other
than  vacant  seats) on the board of  directors  become  occupied by persons not
members of said board on the date hereof that were neither (i)  nominated by the
board  of  directors  of the  Borrower,  nor  (ii)  appointed  by  directors  so
nominated;  or (c) any person or group shall  otherwise  directly or  indirectly
Control the Borrower.

     "Closing Date" shall mean the date of the first Credit Event hereunder.

     "Co-Borrowers,"   each  a   "Co-Borrower,"   shall  mean  the   Significant
Subsidiaries that are a party to this Agreement from time to time.

     "Code"  shall mean the Internal  Revenue  Code of 1986,  as the same may be
amended from time to time.

     "Collateral"  shall  mean  all  property  of the  Borrower  subject  to the
Security Documents.

                                       3

     "Commitment"  shall mean, with respect to each Bank, the commitment of such
Bank as to each Facility  hereunder as set forth in Schedule 2.1, as such Bank's
Commitment may be  permanently  terminated or reduced from time to time pursuant
to Sections 2.10 or 2.20. Each Bank's Commitment shall fully,  automatically and
permanently terminate on the RLC Maturity Date.

     "Commitment  Fee" shall have the  meaning  assigned to such term in Section
2.6(a).

     "Company": See the Preamble.

     "Control"  shall  mean the power to direct  or cause the  direction  of the
management or policies of a person,  whether  through rights of ownership  under
voting   securities,   under  contract  or  otherwise,   and  "Controlling"  and
"Controlled" shall have meanings correlative thereto.

     "Credit Event" shall have the meaning given such term in Article IV.

     "Default Rate" shall mean a rate per annum (computed as provided in Section
2.8(b))  equal to the  Base  Rate  plus  three  percent  (3%)  and  changing  in
conformity with each change in the Base Rate.

     "Designated  Officer"  shall  mean  any  of  the  Chairman  of  the  Board,
President,  any Vice  President,  the  Chief  Financial  Officer,  and the Chief
Accounting Officer of the Borrower.

     "Dollars" or "$" shall mean lawful money of the United States of America.

     "Equipment" shall mean tangible  personalty that is not "inventory,"  "farm
equipment" or "fixtures," as the  immediately  preceding terms in quotations are
defined in Article Nine of the Uniform  Commercial  Code as in effect in and for
the State of Arizona.

     "ERISA" shall mean the Employee  Retirement Income Security Act of 1974, as
the same may be amended from time to time.

     "ERISA  Affiliate"  shall  mean  any  trade  or  business  (whether  or not
incorporated)  that is a member of a group of which the Borrower is a member and
which is treated as a single employer under Section 414 of the Code.

     "ERISA  Liabilities"  shall  mean at any time the  minimum  liability  with
respect  to Plans  that  would be  required  to be  reflected  at such time as a
liability on the consolidated balance sheet of the Borrower under GAAP.

     "Eurodollar  Lending  Office," with respect to any Bank (or  transferee) or
the  Administrative  Agent,  shall  mean such  office or branch as such Bank (or
transferee) or the Administrative Agent has designated to the Borrower herein in
Schedule  "2.1" as the  office or branch  of such  Bank (or  transferee)  or the
Administrative Agent which shall constitute the Lending Office thereof for LIBOR
Borrowings.

     "Event of Default" shall have the meaning  assigned to such term in Article
VII.

                                       4

     "Existing  Letters of Credit" shall mean the letters of credit  outstanding
on the Closing Date issued under the 1999 Agreement, which letters of credit are
listed on Schedule 2A.5 attached hereto.

     "Facility" shall mean the RLC Facility.

     "Federal Funds Rate" shall mean,  for any day, the weighted  average of the
rates on  overnight  Federal  funds  transactions  with  members of the  Federal
Reserve  System  arranged by Federal  funds  brokers,  as  published on the next
succeeding  Business Day by the Federal  Reserve Bank of San  Francisco,  or, if
such rate is not so published  for any day which is a Business  Day, the average
of  the   quotations  for  the  day  of  such   transactions   received  by  the
Administrative  Agent from three Federal  funds  brokers of recognized  standing
selected by it.

     "Fees" shall mean the  Commitment  Fees and all other fees and charges,  if
any, (other than interest)  payable hereunder or otherwise payable in connection
with the Facility.

     "Financial Covenants": See Section 5.11.

     "Financial  Officer" of any Person shall mean the chief financial  officer,
principal accounting officer, treasurer or controller of such Person.

     "GAAP" shall mean  generally-accepted  accounting  principles in the United
States.

     "Governmental  Authority" shall mean any federal,  state,  tribal, local or
foreign court or governmental agency,  authority,  instrumentality or regulatory
body.

     "Guarantee"  of or by any Person shall mean any  obligation,  contingent or
otherwise,  of such  Person  guaranteeing  or  having  the  economic  effect  of
guaranteeing any Indebtedness of any other Person (the "Primary Obligor") in any
manner,  whether directly or indirectly,  and including  without  limitation any
obligation  of such  Person,  direct or  indirect,  (a) to  purchase  or pay (or
advance or supply funds for the purchase or payment of) such  Indebtedness or to
purchase  (or to advance or supply  funds for the  purchase of) any security for
the  payment of such  Indebtedness,  (b) to  purchase  property,  securities  or
services  for the  purpose of  assuring  the owner of such  Indebtedness  of the
payment of such Indebtedness or (c) to maintain working capital,  equity capital
or other financial statement condition or liquidity of the Primary Obligor so as
to enable the Primary Obligor to pay such Indebtedness;  PROVIDED, HOWEVER, that
the term Guarantee shall not include  endorsements for collection or deposit, in
either case in the ordinary course of business.

     "Indebtedness"  of a  Person  shall  mean  each of the  following  (without
duplication)  that,  individually,  is in excess of  $100,000.00  in outstanding
amount (in Dollars or the equivalent at market  exchange rates) on the date such
obligation is incurred:  (a)  obligations of that Person to any other Person for
payment of borrowed money, (b) Capital Lease  Obligations,  (c) notes and drafts
drawn or  accepted by that Person  payable to any other  Person,  whether or not
representing   obligations  for  borrowed  money  (but  without  duplication  of
indebtedness for borrowed  money),  (d) any obligation for the purchase price of
property the payment of which is deferred for more than one year or evidenced by

                                       5

a note or  equivalent  instrument,  (e)  Guarantees  of  Indebtedness  of  third
parties,  and (f) a recourse or  non-recourse  payment  obligation  of any other
Person that is secured by a Lien on any property of the first Person, whether or
not assumed by the first person, up to the fair market value (from time to time)
of such property  (absent  manifest  evidence to the  contrary,  the fair market
value of such property shall be the amount  determined  under GAAP for financial
reporting purposes).

     "Information" shall have the meaning defined in Section 9.17 hereof.

     "Interest  Payment  Date"  shall  mean  (a)  with  respect  to a Base  Rate
Borrowing,  the first day of each month in arrears,  and (b) with respect to any
LIBOR Borrowing,  the last day of the Interest Period applicable thereto and, in
the case of a LIBOR Borrowing with an Interest Period of more than three months'
duration (if at any time made  available  under this  Agreement),  each day that
would have been an  Interest  Payment  Date for such  Borrowing  had  successive
Interest  Periods of three months'  duration been  applicable to such  Borrowing
and, in addition, (c) each of (i) the date of any conversion of a Borrowing with
or to a  Borrowing  of a  different  Type,  (ii)  the  date of  prepayment  of a
Borrowing, and (iii) the RLC Maturity Date.

     "Interest  Period"  shall  mean (a) as to any LIBOR  Borrowing,  the period
commencing  on the  date  of  such  Borrowing  and  ending  on  the  numerically
corresponding day (or, if there is no numerically corresponding day, on the last
day) in the calendar month that is one, two, three or six months thereafter,  as
the Borrower may elect,  or, if earlier,  on the RLC Maturity Date and (b) as to
any Base Rate Borrowing, the period commencing on the date of such Borrowing and
ending on the RLC  Maturity  Date,  the date such  Borrowing  is  converted to a
Borrowing  of a different  Type in  accordance  with Section 2.11 or the date of
repayment or  prepayment  of such  Borrowing in  accordance  with Section 2.5 or
2.12;  PROVIDED,  HOWEVER,  that if any Interest Period would end on a day other
than a  Business  Day,  such  Interest  Period  shall  be  extended  to the next
succeeding  Business Day unless, in the case of LIBOR Borrowings only, such next
succeeding  Business Day would fall in the next  calendar  month,  in which case
such Interest  Period shall end on the next  preceding  Business  Day.  Interest
shall  accrue  from and  including  the first day of an  Interest  Period to but
excluding the last day of such Interest Period.

     "Issuing  Bank"  shall  have  the  meaning  assigned  to  such  term in the
Preamble, and any successor thereto.

     "Lending  Office," with respect to any Bank or any  transferee of the Loans
or the  Administrative  Agent,  shall mean such office or branch as such Bank or
such  transferee  or the  Administrative  Agent has  designated  to the Borrower
herein  as the  office  or  branch  of  that  Bank  or  such  transferee  or the
Administrative Agent from which Loans are to be made.

     "Letter of Credit  Balance"  shall  mean,  at any time,  the sum of (a) the
aggregate undrawn amount of all Letters of Credit  outstanding at such time plus
(b) the  aggregate  amount which has been drawn under  Letters of Credit but for
which  the  Issuing  Bank or the  Banks,  as the  case  may be,  have  not  been
reimbursed by the Borrower.

     "Letter of Credit Commitment" shall mean $4,000,000.00.

                                       6

     "Letter of Credit Disbursement" shall mean any payment or disbursement made
by the Issuing Bank under or pursuant to a Letter of Credit.

     "Letters of Credit" shall mean letters of credit issued by the Issuing Bank
for the account of the Borrower  pursuant to Article IIA as well as the Existing
Letters of Credit.

     "LIBOR  Rate"  shall  mean,  with  respect to any LIBOR  Borrowing  for any
Interest  Period,  the average of the interest  rate per annum (except as to the
Swap Amount, rounded upwards, if necessary,  to the next 1/8 of 1%) equal to the
composite London interbank offered rate for Dollar deposits  approximately equal
in principal  amount to such LIBOR  Borrowing  and for a maturity  comparable to
such  Interest  Period for  delivery  on the first day of the  Interest  Period,
adjusted for reserve requirements.

     "LIBOR  Borrowing"  shall  mean  a  Borrowing  bearing  interest  at a rate
determined by reference to the LIBOR Rate.

     "Lien" shall mean any mortgage, pledge, security interest or similar lien.

     "Loans"  shall mean the loans made  available by the Banks to Borrower,  in
the form of Revolving Loans under the RLC Facility.

     "Loan Documents" shall mean this Agreement, the Notes, the Swing Line Note,
the Security  Documents and all other  documents,  instruments and agreements of
every kind and  description at any time undertaken by any Person for the benefit
of the Banks in connection with the Loans.

     "Margin Stock" shall have the meaning given such term under Regulation U.

     "Maximum RLC Commitment" shall mean $50,000,000.00.

     "Multiemployer  Plan" shall mean a multiemployer plan as defined in Section
4001(a)(3) of ERISA to which the Borrower or any ERISA Affiliate (other than one
considered an ERISA  Affiliate only pursuant to subsection (m) or (o) of Section
414 of the Code) is making or accruing an obligation to make  contributions,  or
has within any of the preceding five plan years made or accrued an obligation to
make contributions.

     "1934 Act" shall mean the United States Securities Exchange Act of 1934, as
amended.

     "1999 Agreement": See the Recitals.

     "Note" and "Notes" shall mean, severally and collectively, revolving credit
notes of the Borrower  executed and delivered as provided in Section 2.7 as such
Notes might be amended, modified, extended and restated from time to time.

     "PBGC" shall mean the Pension Benefit Guaranty  Corporation referred to and
defined in ERISA.

                                       7

     "Permitted Lien" shall mean a Lien permitted under Section 6.1.

     "Person"  shall  mean  any  natural  person  (whether  or not  acting  in a
representative  capacity),  corporation,  limited  liability  company,  business
trust,  joint  venture,   association,   sole  proprietorship,   partnership  or
government, or any agency or political subdivision thereof.

     "Plan" shall mean any pension plan (other than a  Multiemployer  Plan) that
is (1) a qualified  plan under Section  401(a) of the Code,  (ii) subject to the
provisions of Title IV of ERISA or Section 412 of the Code and (iii)  maintained
for employees of the Borrower or any ERISA Affiliate.

     "Potential  Default"  shall  mean any act,  event or  condition  which upon
notice, lapse of time or both would constitute an Event of Default.

     "Prime  Rate"  shall mean at any time the rate of  interest  per annum most
recently  announced within the  Administrative  Agent at its principal office in
San Francisco as its prime rate, with the  understanding  that the prime rate of
the  Administrative  Agent is one of its base rates and serves as the basis upon
which  effective  rates of  interest  are  calculated  for  those  loans  making
reference  thereto,  and  is  evidenced  by  the  recording  thereof  after  its
announcement in such internal  publication or publications as the Administrative
Agent may  designate;  each change in the Prime Rate shall be  effective  on the
date such change is announced within the Administrative Agent.

     "Quarterly Certificate" shall mean that Quarterly Compliance Certificate in
the form of Exhibit F.

     "Redeployment Loss": See Section 2.15.

     "Refunded Swing Line Loan": See Section 2.22(c).

     "Register": See Section 9.4(d).

     "Regulation D" shall mean Regulation D of the Board as from time to time in
effect and all official rulings and interpretations thereunder or thereof.

     "Regulation T" shall mean Regulation T of the Board as from time to time in
effect and all official rulings and interpretations thereunder or thereof.

     "Regulation U" shall mean Regulation U of the Board as from time to time in
effect and all official rulings and interpretations thereunder or thereof.

     "Regulation X" shall mean Regulation X of the Board as from time to time in
effect and all official rulings and interpretations thereunder or thereof.

     "Reportable  Event" shall mean any  reportable  event as defined in Section
4043(b) of ERISA or the  regulations  issued  thereunder  with respect to a Plan
(other than a Plan maintained by an ERISA Affiliate which is considered an ERISA
Affiliate only pursuant to subsection (m) or (o) of Section 414 of the Code).

                                       8

     "Required  Banks"  shall  mean,  at  any  time,  Banks  having  Commitments
representing at least:

          (a) 100% of the Total Commitment if there are only two Banks.

          (b) 66 and 2/3% of the  Total  Commitment  if there  are more than two
     Banks.

     "Revolving  Loans"  shall  mean the  revolving  lines of credit  loans made
available  by the Banks to the Borrower  pursuant to Article II. Each  Revolving
Loan  shall  be  composed  of one or more  LIBOR  Borrowings  and/or  Base  Rate
Borrowings.

     "RLC  Balance"  means the  outstanding  aggregate  principal  amount of all
Borrowings.

     "RLC  Commitment"  shall mean,  with respect to each Bank, its share of the
Maximum RLC Commitment,  based on its Commitment percentage as shown on Schedule
2.1.

     "RLC  Facility":  See Recital A, which  Facility  consists of the Revolving
Loans and the Letters of Credit.

     "RLC Maturity Date" shall mean June 15, 2003.

     "SEC" shall mean the United States Securities and Exchange Commission.

     "Security Documents": See Section 2.21.

     "Significant  Subsidiary"  shall have the meaning given such term under SEC
Regulation S-X, 17 C.F.R. ss.210.1-02.

     "Subsidiary" of a Person shall mean any  corporation,  association or other
business  entity of which more than 50% of the total  voting  power of shares of
stock  entitled  to vote in the  election  of  directors,  managers  or trustees
thereof is at the time owned or  controlled,  directly  or  indirectly,  by that
Person,  by one or more of the  other  Subsidiaries  of that  Person,  or by any
combination thereof.

     "Subordinated  Debt" shall mean  Indebtedness  of Borrower whose payment is
subordinated in writing to the payment of the Loans and the other obligations of
Borrower under this Agreement, to the satisfaction of all of the Banks.

     "Swap  Agreement"  shall  mean  that  Interest  Rate Swap  Agreement  dated
February  13, 2001  between the Company and Wells  Fargo,  as it may be amended,
modified or restated from time to time.

     "Swap  Amount"  shall  mean  the  aggregate   amount  of  LIBOR  Borrowings
outstanding  at any one time  that has been  designated  by the  Borrower  to be
subject to the Swap Agreement.

                                       9

     "Swap Amount Maximum" shall mean $12,200,000.00.  At the termination of the
Swap Agreement, the Maximum shall mean zero.

     "Swing Line Balance": See Section 2.22(a).

     "Swing Line Commitment": See Section 2.22(a).

     "Swing Line Lender" shall mean Wells Fargo.

     "Swing  Line Loan"  shall mean the loans made  available  by the Swing Line
Lender to Borrower pursuant to Article IIB.

     "Swing Line Note": See Section 2.22(b).

     "Termination" shall mean the payment in full of the principal amount of all
Loans, all accrued  interest thereon and all fees with respect thereto,  coupled
with  termination of the Facility and all other  obligations  (if any) of all of
the Banks to advance  funds or extend  credit to or for the  benefit of Borrower
pursuant to this Agreement.

     "Termination  Date" shall mean the date of the occurrence of the last event
to occur required for Termination to occur.

     "Total  Commitment"  shall  mean at any time the  aggregate  amount  of the
Banks'  Commitments,  as in effect  from time to time,  which  amount  shall not
exceed the Maximum RLC Commitment.

     "Type," when used in respect of any  Borrowing,  shall refer to the rate by
reference  to which  interest on such  Borrowing  is  determined.  For  purposes
hereof, "rate" shall mean the LIBOR Rate or the Base Rate.

     "Wells Fargo" shall mean Wells Fargo Bank, National Association.

     SECTION 1.2 TERMS  GENERALLY.  The  definitions  in Section 1.1 shall apply
equally to both the singular and plural forms of the terms defined. Whenever the
context may require,  any pronoun  shall  include the  corresponding  masculine,
feminine and neuter forms. All references herein to Articles, Sections, Exhibits
and  Schedules  shall be deemed  references  to  Articles  and  Sections of this
Agreement,  and Exhibits and  Schedules  to this  Agreement,  unless the context
shall otherwise  require.  Except as otherwise  expressly  provided herein,  all
terms of an accounting or financial nature shall be construed in accordance with
GAAP as in effect in the United  States of America from time to time;  PROVIDED,
HOWEVER,  that,  for purposes of  determining  compliance  with any covenant set
forth in Article VI, such terms shall be construed in accordance with GAAP as in
effect on the date of this Agreement.

                                       10

                                   ARTICLE II
                                THE RLC FACILITY

     SECTION 2.1 THE RLC COMMITMENT.

          (a) Subject to the terms and conditions  herein set forth,  each Bank,
severally and not jointly, agrees to make advances of its Revolving Loans to the
Borrower,  at any time and from time to time on and after  the date  hereof  and
until the earlier of (i) the RLC Maturity  Date or (ii) the  termination  of the
RLC  Commitment  of said  Bank,  in an  aggregate  principal  amount at any time
outstanding not to exceed such Bank's RLC Commitment,  subject,  however, to the
conditions that (A) at no time shall the outstanding  aggregate principal amount
of all Borrowings made by all Banks pursuant to their Revolving Loans,  together
with the Swing Line Balance and the Letter of Credit Balance, exceed the Maximum
RLC Commitment,  and (B) at all times the outstanding aggregate principal amount
of all  Borrowings  advanced by each Bank pursuant to its Revolving  Loans shall
equal the product of (y) the percentage  which its RLC Commitment  represents of
the Maximum RLC Commitment times (z) the outstanding  aggregate principal amount
of all Borrowings  advanced by all Banks pursuant to their Revolving Loans. Such
RLC  Commitments  may be  terminated  or reduced  from time to time  pursuant to
Sections 2.10 and 2.20.  Within the foregoing  limits,  the Borrower may borrow,
pay or prepay and reborrow hereunder,  on and after the date hereof and prior to
the RLC Maturity  Date,  subject to the terms,  conditions and  limitations  set
forth herein.

          (b)  Each  advance  of the  proceeds  of  the  Revolving  Loans  shall
constitute  a single  Borrowing.  Each LIBOR  Borrowing  shall be in a principal
amount  which  is  an  integral  multiple  of  $100,000.00  and  not  less  than
$1,000,000.00 (or, if less, a principal amount equal to the remaining balance of
the available RLC Commitments).

     SECTION 2.2 [Intentionally left blank]

     SECTION 2.3 PROCEDURES FOR BORROWINGS UNDER THE RLC FACILITY.

          (a) Each  advance  under the  Revolving  Loans shall be a single LIBOR
Borrowing  or a  single  Base  Rate  Borrowing,  as the  Borrower  may  request.
Borrowings of more than one Type may be outstanding at the same time;  PROVIDED,
HOWEVER,  that (i) the Borrower  shall not be entitled to request any  Borrowing
which,  if made,  would  result in an  aggregate  of more than five (5) separate
LIBOR Borrowings being outstanding collectively under the Revolving Loans at any
one time and (ii) each LIBOR Borrowing  shall be in a principal  amount which is
an  integral  multiple  of  $100,000.00  and not less  than  $1,000,000.00.  For
purposes  of  the  foregoing,  Borrowings  having  different  Interest  Periods,
regardless  of  whether  they  commence  on the same date,  shall be  considered
separate Borrowings.

                                       11

          (b) In order to request a Borrowing,  the  Borrower  shall give to the
Administrative  Agent written or telecopy notice (or telephone  notice confirmed
in writing on the same  Business  Day) in the form of Exhibit "B" (a  "Borrowing
Notice") not later than 9:00 a.m.,  California  time, (a) in the case of a LIBOR
Borrowing,  three Business days before a proposed  Borrowing and (b) in the case
of a Base Rate  Borrowing,  on the day of a proposed  Borrowing.  Each Borrowing
Notice  shall be  irrevocable  and shall in each case  specify  (i)  whether the
Borrowing  then  being  requested  is to be a  LIBOR  Borrowing  or a Base  Rate
Borrowing;  (ii) the date of such Borrowing  (which shall be a Business Day) and
the amount  thereof;  (iii) if such  Borrowing is to be a LIBOR  Borrowing,  the
Interest Period with respect thereto;  (iv) if such Borrowing is to reborrow all
or any part of any  outstanding  Borrowing,  the  identity  and  amount  of such
Borrowing that the Borrower requests to be refinanced; and (v) if such Borrowing
is to be a LIBOR Borrowing, whether such Borrowing is to be included in the Swap
Amount. If no election as to the Type of Borrowing is specified in any Borrowing
Notice,  then the  requested  Borrowing  shall be a Base Rate  Borrowing.  If no
Interest  Period  with  respect  to any  LIBOR  Borrowing  is  specified  in any
Borrowing Notice, then the Borrower shall be deemed to have selected an Interest
Period of one month's  duration.  Subject to Section 2.11, if the Borrower shall
not have  given  notice in  accordance  with this  Section  of its  election  to
reborrow a LIBOR Borrowing prior to the end of the Interest Period in effect for
such Borrowing, then the Borrower (unless such Borrowing is repaid at the end of
such  Interest  Period)  shall be deemed to have given  notice of an election to
reborrow such Borrowing with a Base Rate Borrowing.

          (c) If a LIBOR  Borrowing  has been  designated  by the Borrower to be
included in the Swap Amount,  the Interest  Period of such LIBOR  Borrowing  (i)
shall  commence on the 15th day of each month  thereafter  (or if not a Business
Date,  the  next  Business  Day),  (ii)  shall at all  times  be of one's  month
duration, and (iii) shall terminate on the 15th day of each month thereafter (or
if not a Business Date,  the next Business Day). The Swap Amount  outstanding at
any time may not exceed the Swap Amount Maximum unless otherwise consented to by
all the Banks.

     SECTION 2.4 REVOLVING LOANS.

          (a) Each Loan shall be made as part of a  Borrowing  made by the Banks
ratably  in  accordance  with their  Commitments;  PROVIDED,  HOWEVER,  that the
failure of any Bank to make any Loan shall not in itself  relieve any other Bank
of its obligation to lend hereunder (it being understood,  however, that no Bank
shall be responsible for the failure of any other Bank to make any Loan required
to be made by such other Bank).

          (b) Each Bank shall make any LIBOR  Borrowing by causing either at its
option any domestic branch or the Eurodollar Lending Office of such Bank to make
such  Loan;  provided  that any  exercise  of such  option  shall not affect the
obligation  of the Borrower to repay such Loan in  accordance  with the terms of
this Agreement and the Note.

                                       12

          (c) Subject to Section 2.3,  each Bank shall make each Loan to be made
by it  hereunder on the proposed  date thereof by wire  transfer of  immediately
available funds to the Administrative Agent in Phoenix,  Arizona, not later than
11:00 a.m.,  California time, and the  Administrative  Agent shall by 2:00 p.m.,
California  time,  credit the amounts so received to the general deposit account
of the  Borrower  with the  Administrative  Agent (or such other  account as the
Borrower may designate) or, if a Borrowing  shall not occur on such date because
any condition  precedent  herein  specified  shall not have been met, return the
amounts so received to the  respective  Banks.  Loans shall be made by the Banks
pro rata in accordance with Section 2.16. Unless the Administrative  Agent shall
have received  notice from a Bank prior to the date of any  Borrowing  that such
Bank will not make available to the Administrative  Agent such Bank's portion of
such Borrowing, the Administrative Agent may assume that such Bank has made such
portion available to the  Administrative  Agent on the date of such Borrowing in
accordance with this paragraph (c) and the Administrative Agent may, in reliance
upon  such   assumption,   make  available  to  the  Borrower  on  such  date  a
corresponding  amount.  If and to the extent  that such Bank shall not have made
such portion available to the  Administrative  Agent, such Bank and the Borrower
severally  agree to repay to the  Administrative  Agent forthwith on demand such
corresponding  amount together with interest thereon, for each day from the date
such  amount is made  available  to the  Borrower  until the date such amount is
repaid  to the  Administrative  Agent  at (i) in the case of the  Borrower,  the
interest rate applicable at the time to the Loans  comprising such Borrowing and
(ii) in the case of such Bank,  the Federal Funds Rate. If such Bank shall repay
to the  Administrative  Agent  such  corresponding  amount,  such  amount  shall
constitute  such  Bank's  Loan as part of such  Borrowing  for  purposes of this
Agreement.

     SECTION  2.5  REBORROWINGS.  Subject  to Section  2.11,  the  Borrower  may
reborrow  all or any part of any  Borrowing  with a  Borrowing  of the same or a
different  Type made  pursuant to Section  2.3,  subject to the  conditions  and
limitations set forth herein and elsewhere in this  Agreement.  Any Borrowing or
part thereof so  reborrowed  or combined  shall be deemed to have been repaid in
accordance with Section 2.7 with the proceeds of a new Borrowing hereunder,  and
the proceeds of the new Borrowing (except to the extent, if any, they exceed the
principal amount of the Borrowing(s) being reborrowed) shall not be disbursed to
the Borrower pursuant to Section 2.4(c).

     SECTION 2.6 FEES.

          (a)  The   Borrower   agrees  to  pay  to  each  Bank,   through   the
Administrative  Agent, (i) quarterly in arrears for each calendar quarter ending
each March 31, June 30,  September 30 and December 31, on the last  Business Day
of each calendar quarter, commencing June 30, 2001 and (ii) on the date on which
the respective  Commitment of such Bank shall be terminated as provided  herein,
for the period  from the end of the  preceding  calendar  quarter to the date of
such termination, a commitment fee (each a "Commitment Fee") on a prorated basis
at a rate per annum equal to 6.25 basis points (.0625%) on the Average  Adjusted
Daily Undrawn Balance during the preceding  calendar  quarter (or shorter period
(1) commencing  with the date hereof or (2) ending with the RLC Maturity Date or
any  other  date on  which  the  respective  Commitment  of such  Bank  shall be
terminated).  All  Commitment  Fees shall be computed on the basis of the actual
number of days elapsed in a year of 360 days.  The  Commitment  Fees due to each
Bank shall  commence  to accrue on the date  hereof and shall cease to accrue on
the  earlier of the RLC  Maturity  Date and the  termination  of the  respective
Commitment of Bank as provided herein.

                                       13

          (b) All Fees shall be paid to each Bank on the dates  due,  in Dollars
in immediately available funds to the Administrative Agent for distribution,  if
and or  appropriate,  among the  Banks.  Once  paid,  none of the Fees  shall be
refundable under any circumstances.

     SECTION 2.7 NOTES; REPAYMENT OF REVOLVING LOANS. The Revolving Loan made by
each Bank shall be evidenced by a separate  Note duly  completed and executed on
behalf of the Borrower, dated the date of said Bank's Commitment, in the form of
Exhibit C hereto,  and payable to the order of such Bank in a  principal  amount
equal to said Bank's  Commitment.  Each Note shall bear  interest  from the date
thereof on the  outstanding  principal  balance  thereof as set forth in Section
2.8. Each Bank may (and is hereby  authorized  by the  Borrower,  at said Bank's
discretion, to) endorse on a schedule attached to the Note held by such Bank (or
on a  continuation  of such schedule  attached to each such Note and made a part
thereof), or otherwise to record in such Bank's internal records, an appropriate
notation  evidencing the date and amount of each  Borrowing  under the Revolving
Loan of such Bank, each payment or prepayment of principal of any such Borrowing
and the other information provided for on such schedule; PROVIDED, HOWEVER, that
the failure of any Bank to make such a notation or any error  therein  shall not
in any manner  affect the  obligation  of the  Borrower to repay each  Borrowing
under the Revolving Loans in accordance with the terms of the Notes.

     SECTION 2.8 INTEREST ON REVOLVING LOANS.

          (a) Subject to the  provisions  of Sections  2.9 and 2.11,  each LIBOR
Borrowing  shall bear  interest  (computed on the basis of the actual  number of
days  elapsed  over a year of 360 days) at a rate per annum  equal to, the LIBOR
Rate for the  Interest  Period  in  effect  for such  LIBOR  Borrowing  plus the
Applicable  Margin.  Interest on each LIBOR  Borrowing  shall be payable on each
applicable  Interest Payment Date. The LIBOR Rate for each Interest Period shall
be determined  by the  Administrative  Agent,  and such  determination  shall be
conclusive absent manifest error. The Administrative Agent shall promptly advise
the Borrower and each Bank of such determination.

          (b) Subject to the provisions of Sections 2.9 and 2.11, each Base Rate
Borrowing  shall bear  interest  (computed on the basis of the actual  number of
days  elapsed  over a year of 360 days,  as the case may be) at a rate per annum
equal to the Base Rate plus the  Applicable  Margin.  Interest on each Base Rate
Borrowing  shall be payable on each applicable  Interest  Payment Date. The Base
Rate shall be  determined  by the  Administrative  Agent and such  determination
shall be  conclusive  absent  manifest  error.  The  Administrative  Agent shall
promptly advise the Borrower and each Bank of such determination.

     SECTION 2.9 DEFAULT INTEREST.  If the Borrower shall default in the payment
of the principal of or interest on any Revolving  Loan or Swing Ling Loan or any
other amount becoming due hereunder,  whether by scheduled  maturity,  notice of
prepayment, acceleration or otherwise, the Borrower shall on demand from time to
time pay interest,  to the extent  permitted by law, on such defaulted amount up
to (but not  including  the date of  actual  payment  (after  as well as  before
judgment) at the Default Rate.

                                       14

     SECTION 2.10 TERMINATION AND REDUCTION OF COMMITMENTS.

          (a) The RLC Commitment  shall be  automatically  terminated on the RLC
Maturity Date.

          (b) Upon at least three  Business Days' prior  irrevocable  written or
telecopy notice to the Administrative  Agent,  Borrower may at any time in whole
permanently  terminate,  or from time to time in part permanently  reduce,  each
such Commitment;  PROVIDED,  HOWEVER, that each partial reduction of the Maximum
RLC Commitment shall be in an integral  multiple of $100,000.00 and in a minimum
principal amount of $1,000,000.00; and PROVIDED FURTHER, that the Borrower shall
not be  permitted to  terminate  or reduce the Maximum RLC  Commitment  if, as a
result  respectively,  the aggregate  principal  amount of the  Revolving  Loans
together with the Letter of Credit Balance  outstanding  hereunder  would exceed
such reduced amount of the Maximum RLC Commitment.

     SECTION 2.11 CONVERSION AND CONTINUATION OF BORROWINGS.  The Borrower shall
have the right at any time upon prior irrevocable  notice to the  Administrative
Agent not later than 9:00 a.m.,  California  time, (i) on the day of conversion,
to convert any LIBOR Borrowing into a Base Rate  Borrowing,  (ii) three Business
Days prior to conversion  or  continuation,  to convert any Base Rate  Borrowing
into a LIBOR  Borrowing or to continue any LIBOR  Borrowing as a LIBOR Borrowing
for an  additional  Interest  Period,  and (iii)  three  Business  Days prior to
conversion,  to convert the Interest  Period with respect to any LIBOR Borrowing
to another permissible Interest Period, subject in each case to the following:

          (a) if less than all the outstanding principal amount of any Borrowing
shall  be  converted  or  continued,  the  aggregate  principal  amount  of such
Borrowing  converted or continued  shall be an integral  multiple of $100,000.00
and not less than $1,000,000.00;

          (b) each  conversion  shall be effected  by the Banks by applying  the
proceeds of the new Borrowing  resulting  from such  conversion to the Borrowing
(or portion  thereof)  being  converted;  accrued  interest  on a Borrowing  (or
portion  thereof) being  converted  shall be paid by the Borrower at the time of
conversion;

          (c)  any  LIBOR  Borrowing  may be  converted  only  at the end of the
Interest Period applicable thereto;

          (d) any  portion of a  Borrowing  maturing or required to be repaid in
less than one month may not be converted into or continued as a LIBOR Borrowing;

          (e) any portion of a LIBOR  Borrowing  which  cannot be continued as a
LIBOR  Borrowing  by reason of clauses (c) and (d) above shall be  automatically
converted at the end of the Interest  Period in effect for such Borrowing into a
Base Rate Borrowing; and

          (f) each conversion or  continuation  shall be made pro rata among the
Banks in accordance  with the respective  principal  amounts of the converted or
continued Borrowings.

                                       15

          (g) Each notice  pursuant to this  Section  shall be  irrevocable  and
shall refer to this  Agreement  and specify (i) the  identity  and amount of the
Borrowing  that the Borrower  requests be converted or  continued,  (ii) whether
such Borrowing is to be converted to or continued as a LIBOR Borrowing or a Base
Rate  Borrowing,  (iii) if such notice  requests a conversion,  the date of such
conversion  (which shall be a Business Day) and (iv) if such  Borrowing is to be
converted to or continued as a LIBOR Borrowing, the Interest Period with respect
thereto.  If no Interest  Period is specified in any such notice with respect to
any conversion to or  continuation as a LIBOR  Borrowing,  the Borrower shall be
deemed  to have  selected  an  Interest  Period  of one  month's  duration.  The
Administrative  Agent shall advise the other Banks of any notice given  pursuant
to this  Section  and of each  Bank's  portion  of any  converted  or  continued
Borrowing.  If the Borrower shall not have given notice in accordance  with this
Section to continue any LIBOR  Borrowing into a subsequent  Interest Period (and
shall not otherwise have given notice in accordance with this Section to convert
such  Borrowing),  such  Borrowing  shall,  at the  end of the  Interest  Period
applicable  thereto (unless repaid pursuant to the terms hereof),  automatically
be continued as a Base Rate Borrowing.

     SECTION 2.12 PREPAYMENT.

          (a) The  Borrower  shall  have the  right at any time and from time to
time to prepay any  Borrowing,  in whole or in part,  upon  written or  telecopy
notice (or telephone notice promptly confirmed by written or telecopy notice) to
the Administrative  Agent, such notice to be three Business Days with respect to
a LIBOR  Borrowing  and one Business Day with respect to a Base Rate  Borrowing;
provided,  however,  that each partial prepayment shall be in an amount which is
an integral multiple of $100,000.00 and not less than $1,000,000.00.

          (b) On the date of any  termination  or  reduction  of the Maximum RLC
Commitment  pursuant to Section 2.10, the Borrower shall pay or prepay an amount
of the  Revolving  Loan such that the sum of the aggregate  principal  amount of
such Loan outstanding together with the Letter of Credit Balance will not exceed
the respective Commitment after giving effect to such termination or reduction.

          (c) Each notice of prepayment  shall specify the  prepayment  date and
the principal amount of each Borrowing (or portion thereof) to be prepaid, shall
be  irrevocable  and shall  commit the  Borrower  to prepay such  Borrowing  (or
portion  thereof) by the amount stated therein on the date stated  therein.  All
prepayments  under this Section  shall be subject to Section 2.15 but  otherwise
without  premium  or  penalty.  All  prepayments  under  this  Section  shall be
accompanied by a payment of accrued  interest on the amount being prepaid to the
date of payment.

     SECTION 2.13 RESERVE REQUIREMENTS; CHANGE IN CIRCUMSTANCES.

          (a) If any Bank shall have determined that the adoption after the date
hereof of any law, rule,  regulation or guideline  regarding  capital  adequacy,
special  deposit,  insurance  or any change  after the date hereof in any of the
foregoing or in the  interpretation or administration of any of the foregoing by
any Governmental  Authority,  central bank or comparable agency charged with the
interpretation  or  administration  thereof,  or  compliance by any Bank (or any
Lending Office of such Bank) or any Bank's  holding  company with any request or
directive  promulgated after the date hereof regarding capital adequacy (whether

                                       16

or not having the force of law) of any such Governmental Authority, central bank
or  comparable  agency,  has or would  have the effect of  reducing  the rate of
return on such Bank's or on the capital of such Bank's holding company,  if any,
as a consequence  of this Agreement or the Revolving Loan made by such Bank to a
level  below that  which such Bank or such  Bank's  holding  company  could have
achieved but for such adoption,  change or compliance (taking into consideration
such  Bank's  policies  and the  policies of such Bank's  holding  company  with
respect to capital  adequacy) by an amount  deemed by such Bank in good faith to
be  material,  then from time to time the  Borrower  shall pay to such Bank such
additional amount or amounts as will compensate such Bank or such Bank's holding
company for any such reduction suffered.

          (b)  Notwithstanding  any other provision herein, if after the date of
this  Agreement  any change in applicable  law or  regulation  (either by way of
changes in existing  laws or  regulations  or the  introductions  of new laws or
regulations)  or  in  the  interpretation  or  administration   thereof  by  any
Governmental Authority charged with the interpretation or administration thereof
(whether  or not having the force of law) shall  change the basis of taxation of
payments to any Bank of the principal of or interest on any LIBOR Borrowing made
by such Bank,  Fees or other amounts  payable  hereunder  (other than changes in
respect  of taxes  imposed  on the net income of such  Bank),  or shall  impose,
modify or deem applicable any reserve,  special  deposit or similar  requirement
against  assets of,  deposits  with or for the account of or credit  extended by
such Bank,  including  without  limitation any reserve  requirement  that may be
applicable to "eurocurrency  liabilities"  under and as defined in Regulation D,
or shall impose on such Bank or the London  interbank market any other condition
affecting  this  Agreement  or any LIBOR  Borrowing  made by such Bank,  and the
result of any of the  foregoing  shall be to  increase  the cost to such Bank of
making or  maintaining  any LIBOR  Borrowing  or to reduce the amount of any sum
received or receivable  by such Bank  hereunder or under its Note (in respect of
LIBOR Borrowing only), whether of principal, interest or otherwise, by an amount
deemed by such Bank in good faith to be material, then, the Borrower will pay to
such Bank upon demand such additional  amount or amounts as will compensate such
Bank for such additional costs incurred or reduction suffered.

          (c) A  certificate  of a Bank setting  forth such amount or amounts as
shall be necessary to compensate  such Bank or its holding  company as specified
in  paragraph  (a) or (b)  above,  as the  case  may be,  and  setting  forth in
reasonable  detail the manner in which  such  amount or amounts  shall have been
determined  shall be delivered to the  Borrower and shall be  conclusive  absent
manifest error.  The Borrower shall pay each Bank the amount shown as due on any
such certificate delivered by it within 10 days after its receipt of the same.

                                       17

          (d)  Failure  on the part of any Bank to demand  compensation  for any
increased  costs or reduction in amounts  received or receivable with respect to
any  period  shall  not  constitute  a waiver  of said  Bank's  right to  demand
compensation with respect to such period or any other period.  The protection of
this  Section  shall  be  available  to any  Bank  regardless  of  any  possible
contention of the invalidity or  inapplicability  of the law, rule,  regulation,
guideline  or other  change or  condition  which  shall  have  occurred  or been
imposed,  provided that if such Bank is compensated  for such increased costs or
reduction  by any  Governmental  Authority  or  third  party in the  event  such
invalidity or inapplicability is finally determined, then such Bank shall return
to Borrower the respective  compensation  paid by Borrower,  up to the lesser of
such amount as is received by such Bank or such amount as was paid by Borrower.

          (e) Without prejudice to the survival of any other agreement contained
herein,  the agreements and obligations  contained in this Section shall survive
Termination,  provided  that  Borrower  shall have no further  obligation to the
Banks under this Section  unless a certificate  setting forth the amount of such
obligation  shall have been  delivered by the Banks  pursuant to  paragraph  (c)
above within ninety (90) calendar days after the Termination Date.

          (f) Each Bank or the Administrative Agent on behalf of the Banks shall
give  notification to the Borrower of any event or prospective  event which will
give  rise to the  operation  of  paragraphs  (a) or (b) of this  Section,  such
notification  to be sent  within  thirty  (30)  days of the  date of the  public
promulgation of the effective date of any such law, rule, regulation, guidelines
or change therein.

     SECTION 2.14 CHANGE IN LEGALITY.

          (a)  Notwithstanding  any other provision herein, if any change in any
law or regulation or in the interpretation thereof by any Governmental Authority
charged with the administration or interpretation thereof shall make it unlawful
for any Bank to make or maintain  any LIBOR  Borrowing  or to give effect to its
obligations as contemplated hereby with respect to any LIBOR Borrowing,  then by
written notice to the Borrower  setting forth in reasonable  detail the relevant
circumstances and the effect thereof, such Bank may:

               (i) declare that LIBOR  Borrowings will not thereafter be made by
     such Bank  hereunder,  whereupon  any request by the  Borrower  for a LIBOR
     Borrowing  shall be deemed a request for a Base Rate Borrowing  unless such
     declaration shall be subsequently withdrawn; and

               (ii) require that all outstanding  LIBOR Borrowings made by it be
     converted to Base Rate Borrowings, in which event all such LIBOR Borrowings
     shall  be  automatically  converted  to  Base  Rate  Borrowings  as of  the
     effective date of such notice as provided in paragraph (b) below.

In the event any Bank shall  exercise  its rights  under (i) or (ii) above,  all
payments and prepayments of principal which would otherwise have been applied to
repay  the  LIBOR  Borrowings  that  would  have  been  made by such Bank or the
converted  LIBOR  Borrowings  of such Bank shall instead be applied to repay the
Base  Rate  Borrowings  made by such  Bank in lieu  of,  or  resulting  from the
conversion of, such LIBOR Borrowings.

                                       18

          (b) For purposes of this Section, a notice to the Borrower by any Bank
shall be effective as to each LIBOR Borrowing, if lawful, on the last day of the
Interest Period currently applicable to such LIBOR Borrowing; in all other cases
such notice shall be effective on the date of receipt by the Borrower.

          (c) Each Bank shall use its best  efforts to give prompt  notification
to the  Borrower of any event or  prospective  event which will give rise to the
operation of paragraph (a) of this Section.

     SECTION 2.15  REDEPLOYMENT  LOSS.  The  Borrower  shall pay to each Bank on
demand against any Redeployment Loss (defined below) arising as a consequence of
any  payment,  prepayment  (optional  or  mandatory)  or  conversion  of a LIBOR
Borrowing required by any other provision of this Agreement or otherwise made or
deemed made on a date other than the last day of the Interest Period  applicable
thereto, or failure to borrow,  convert or extend a LIBOR Borrowing after giving
notice. "Redeployment Loss" shall mean, in each circumstance, a fee which is the
sum of the  discounted  monthly  differences  for each  month  from the month of
prepayment  through the month in such  Interest  Period  matures,  calculated as
follows for each such month:

               (i)  DETERMINE  the amount of interest  which would have  accrued
     each month on the amount  prepaid at the interest  rate  applicable to such
     amount  had it  remained  outstanding  until  the last day of the  Interest
     Period applicable thereto.

               (ii) SUBTRACT from the amount  determined in (i) above the amount
     of  interest  which  would  have  accrued  for the same month on the amount
     prepaid for the remaining term of such Interest Period at the LIBOR Rate in
     effect on the date of prepayment  for new loans made for such term and in a
     principal amount equal to the amount prepaid.

               (iii) If the  result  obtained  in (ii) for any month is  greater
     than zero, discount that difference by the LIBOR Rate used in (ii) above.

The Borrower acknowledges that prepayment of such amount may result in the Banks
incurring  additional  costs,  expenses  and/or  liabilities,  and  that  it  is
difficult  to  ascertain  the  full  extent  of  such  costs,   expenses  and/or
liabilities.  The  Borrower,   therefore,  agrees  to  pay  the  above-described
prepayment fee and agrees that said amount  represents a reasonable  estimate of
the prepayment costs,  expenses and/or liabilities of the Banks. If the Borrower
fails to pay any  prepayment  fee when due,  the amount of such  prepayment  fee
shall thereafter bear interest until paid at the Default Rate.

A  certificate  of any Bank  setting  forth in  reasonable  detail any amount or
amounts  which Bank is entitled to receive  pursuant to this Section and setting
forth in  reasonable  detail the manner in which  such  amounts  shall have been
determined  shall be delivered to the  Borrower and shall be  conclusive  absent
manifest  error.  Without  prejudice  to the  survival  of any  other  agreement
contained herein, the agreements and obligations contained in this Section shall
survive  Termination  provided that Borrower shall have no further obligation to

                                       19

any Bank under this Section  unless a  certificate  setting  forth the amount of
such obligation shall have been delivered by such Bank pursuant to the preceding
sentence within ninety (90) calendar days after the Termination Date.

     SECTION 2.16 PRO RATA  TREATMENT.  Except as required under Section 2.14 or
Section  2.22,  or permitted by Section 2.20,  each  Borrowing,  each payment or
prepayment of principal of any Borrowing, each payment of interest on the Loans,
each payment of the Fees, each reduction of the Commitments and each refinancing
of any Borrowing with a Borrowing of any Type, shall be allocated pro rata among
the  Banks  in  accordance  with  their  respective  Commitments  (or,  if  such
Commitments  shall  have  expired or been  terminated,  in  accordance  with the
respective  principal amounts of their outstanding Loans). Each Bank agrees that
in computing  such Bank's  portion of any  Borrowing to be made  hereunder,  the
Administrative  Agent may, in its  discretion,  round each Bank's  percentage of
such Borrowing to the next higher or lower whole dollar amount.

     SECTION 2.17 SHARING OF SETOFFS. Each Bank agrees that if it shall, through
the exercise of a right of banker's  lien,  setoff or  counterclaim  against the
Borrower,  or pursuant to a secured  claim under  Section 506 of Title 11 of the
United  States Code or other  security or interest  arising from, or in lieu of,
such  secured  claim,  received  by such Bank under any  applicable  bankruptcy,
insolvency  or other  similar law or  otherwise,  or by any other means,  obtain
payment  (voluntary or  involuntary) in respect of any Loan or Loans as a result
of which  the  unpaid  principal  portion  of the  Loans of such  Bank  shall be
proportionately less than the unpaid principal portion of the Loans of any other
Bank, it shall be deemed  simultaneously  to have purchased from such other Bank
at face value, and shall promptly pay to such other Bank the purchase price for,
a  participation  in the Loans of such other Bank, so that the aggregate  unpaid
principal amount of the Loans and  participations in the Loans held by each Bank
shall be in the same proportion to the aggregate  unpaid principal amount of all
Loans  then  outstanding  as the  principal  amount of its  Loans  prior to such
exercise  of banker's  lien,  setoff or  counterclaim  or other event was to the
principal  amount of all Loans  outstanding  prior to such  exercise of banker's
lien,  setoff or counterclaim or other event;  PROVIDED,  HOWEVER,  that, if any
such purchase or purchases or adjustments shall be made pursuant to this Section
and the payment giving rise thereto shall thereafter be recovered, such purchase
or purchases or  adjustments  shall be rescinded to the extent of such  recovery
and the purchase price or prices or adjustment  restored without  interest.  The
Borrower  expressly  consents to the foregoing  arrangements and agrees that any
Bank  holding a  participation  in a Loan deemed to have been so  purchased  may
exercise  any and all  rights of  banker's  lien,  setoff or  counterclaim  with
respect  to any and all  moneys  owing by the  Borrower  to such  Bank by reason
thereof as fully as if such Bank had made a Loan directly to the Borrower in the
amount of such participation.

     SECTION 2.18 PAYMENTS.

          (a) The Borrower shall make each payment (including without limitation
principal  of or  interest  on any  Borrowing  or any  Fees  or  other  amounts)
hereunder and under any other Loan Document no later than 11:00 a.m., California
time, on the date when due in Dollars to the Administrative Agent at its offices
at 100 West Washington,  Phoenix,  Arizona,  or at such other location as it may
direct the Borrower in writing to use, in immediately available funds.

                                       20

          (b) Whenever any payment (including without limitation principal of or
interest on any Borrowing or any Fees or other  amounts)  hereunder or under any
other Loan Document shall become due, or otherwise would occur, on a day that is
not a Business  Day,  such payment may be made on the next  succeeding  Business
Day,  and  such  extension  of time  shall  in  such  case  be  included  in the
computation of interest or Fees, if applicable.

          (c) The Borrower  authorizes the  Administrative  Agent to collect all
principal and interest due under each Loan by charging Borrower's demand deposit
account number  4159-518950 with the  Administrative  Agent, or any other demand
deposit account  maintained by Borrower with the  Administrative  Agent, for the
full  amount  thereof.  Should  there be  insufficient  funds in any such demand
deposit  account  to pay all  such  sums  when  due,  the  full  amount  of such
deficiency shall be immediately due and payable by the Borrower.

     SECTION 2.19 TAXES.

          (a) All payments by the Borrower  under this  Agreement  shall be made
without setoff or counterclaim  and in such amounts as may be necessary in order
that all such payments after  deduction or withholding  for or on account of any
present or future taxes, levies, imposts, duties,  withholdings or other charges
of whatsoever  nature and all liabilities with respect  thereto,  other than any
taxes on or  measured  by the gross or net income of a Bank  pursuant to (i) the
income  and/or  franchise  tax laws of the  jurisdictions  in which such Bank is
incorporated  or organized or in which the principal  office of such Bank or the
branch that is a party to this  Agreement of that Bank is located,  and (ii) the
income  and/or  franchise  tax laws of the  jurisdictions  in which the  Lending
Office or the Eurodollar  Lending Office of that Bank are then located (all such
nonexcluded taxes, levies, imposts,  duties,  withholdings and liabilities being
hereinafter  referred  to as  "Taxes"),  shall  not be  less  than  the  amounts
otherwise  specified  to be paid by the  Borrower  to or for the  account of the
Administrative   Agent  or  Bank  (or  any  transferee  or  assignee   (each,  a
"Transferee"))  under this  Agreement.  Upon request of the Borrower in writing,
each Bank shall  designate  a different  Lending  Office or  Eurodollar  Lending
Office,  as the case may be, if such  designation  will avoid the  imposition of
Taxes and if such  designation  will not, in the sole  judgment of such Bank, be
otherwise  disadvantageous  to such  Bank.  With  respect to each  deduction  or
withholding  for or on account of any Taxes of the  Administrative  Agent or any
Bank (or  Transferee),  Borrower shall promptly (and in any event not later than
45 days thereafter) furnish to such Administrative Agent or Bank (or Transferee)
a receipt evidencing payment thereof.

          (b) In  addition,  the  Borrower  agrees to pay any  present or future
stamp or  documentary  taxes or any other excise or property  taxes,  charges or
similar  levies  which  arise  from  any  payment  made  hereunder  or from  the
execution,  delivery or  registration  of, or  otherwise  with  respect to, this
Agreement or any other Loan Document (hereinafter referred to as "Stamp Taxes").
Each Bank that is organized  outside the United States  represents  and warrants
that as of the  Closing  Date,  it is not aware of any Stamp Tax  imposed by the
jurisdiction in which it is  incorporated  that applies to this Agreement or any
payment made to such Bank hereunder.

                                       21

          (c) The Borrower  will  indemnify  each Bank (or  Transferee)  and the
Administrative  Agent for the full  amount of Taxes and Stamp  Taxes  (including
without  limitation  any Taxes or Stamp  Taxes  imposed by any  jurisdiction  on
amounts  payable under this Section)  paid by such Bank (or  Transferee)  or the
Administrative  Agent, as the case may be, and any liability  (including without
limitation  penalties,  interest and expenses) arising therefrom or with respect
thereto,  whether or not such Taxes or Stamp  Taxes  were  correctly  or legally
asserted by the relevant taxing authority or other Governmental Authority.  Such
indemnification  shall  be made  within  30 days  after  the  date  any Bank (or
Transferee)  or the  Administrative  Agent,  as the case may be,  makes  written
demand  therefor.  If a Bank, as the result of any Tax with respect to which the
Borrower is required to make a payment  pursuant to this Section shall realize a
tax credit or refund in its country or other  jurisdiction of  incorporation  or
organization  or in the  jurisdiction  in which its principal  office or Lending
Office or Eurodollar Lending Office is then located,  which tax credit or refund
would not have been  realized but for the  Borrower's  payment of such Tax, such
Bank shall pay to the  Borrower an amount equal to such tax credit or refund (to
the extent of amounts  that have been paid by the  Borrower  under this  Section
with respect to such credit or refund) net of all out-of-pocket expenses of such
Bank; PROVIDED that the Borrower, upon the request of the Bank, agrees to return
such credit or refund (plus  penalties,  interest or other charges) to such Bank
in the  event  such  Bank is  required  to repay  such  credit  or refund to the
relevant taxing authority. Any amount required to be calculated pursuant to this
Section  shall be calculated  in good faith by the Bank (or  Transferee)  or the
Administrative  Agent, and such calculation shall be conclusive and binding upon
the parties hereto.

          (d) Without prejudice to the survival of any other agreement contained
herein,  the agreements and obligations  contained in this Section shall survive
Termination,  provided  that  Borrower  shall have no further  obligation to the
Banks under this Section  unless a certificate  setting forth the amount of such
obligation  shall have been delivered by the Banks to the Borrower within ninety
(90) calendar days after the Termination Date.

          (e) Each Bank (or  Transferee)  that is  organized  outside the United
States (i) on or before the date it becomes a party to this  Agreement  and (ii)
with respect to each Lending Office or Eurodollar Lending Office located outside
the  United  States of such  Bank (or  Transferee),  on or before  the date such
office or branch becomes a Lending Office or Eurodollar  Lending  Office,  shall
deliver  to  the  Borrower  and  the  Administrative  Agent  such  certificates,
documents  or other  evidence,  as required by the Code or Treasury  Regulations
issued pursuant thereto,  properly  completed and duly executed by such Bank (or
Transferee) establishing that payments received hereunder are (i) not subject to
withholding  under the Code because such payment is  effectively  connected with
the  conduct by such Bank (or  Transferee)  of a trade or business in the United
States or (ii) totally exempt from United States Federal withholding tax under a
provision  of an  applicable  tax  treaty.  In  addition,  each  such  Bank  (or
Transferee)   shall,  if  legally  able  to  do  so,  thereafter   deliver  such
certificates,  documents or other evidence from time to time  establishing  that
payments received  hereunder are not subject to such withholding upon receipt of
a written request therefor from the Borrower or the Administrative Agent. Unless
the Borrower and the Administrative Agent have received forms or other documents
satisfactory to them  indicating that payments  hereunder or under the Notes are
not  subject to United  States  Federal  withholding  tax,  the  Borrower or the
Administrative  Agent  shall  withhold  such  taxes  from such  payments  at the
applicable statutory rate.

                                       22

          (f) The Borrower shall not be required to pay any  additional  amounts
to any Bank (or  Transferee)  or the  Administrative  Agent in respect to United
States Federal withholding tax pursuant to paragraph (a) above if the obligation
to pay such  additional  amounts would not have arisen but for a failure by such
Bank (or Transferee) or the  Administrative  Agent to deliver the  certificates,
documents or other evidence specified in the preceding paragraph (e) unless such
failure  is  attributable  to (i) a change  in  applicable  law,  regulation  or
official  interpretation  thereof or (ii) an amendment or  modification  to or a
revocation  of any  applicable  tax  treaty  or a change  in  official  position
regarding the application or  interpretation  thereof,  in each case on or after
the date such Bank (or Transferee) or the  Administrative  Agent becomes a party
to this Agreement  (or, if applicable,  on or after the date a Lending Office or
Eurodollar  Lending Office of such Bank (or Transferee) or Administrative  Agent
became a Lending Office or Eurodollar Lending Office hereunder).

          (g)  Nothing  contained  in this  Section  shall  require any Bank (or
Transferee) or the Administrative Agent to make available any of its tax returns
(or  any  other  information  relating  to  its  taxes)  which  it  deems  to be
confidential.

          (h) Each Bank or the Administrative Agent on behalf of the Banks shall
give  notification to the Borrower of any event or prospective  event which will
give rise to the operation of paragraphs  (a), (b) or (c) of this Section,  such
notification  to be sent  within  thirty  (30)  days of the  date of the  public
promulgation of the effective date of any such Taxes or Stamp Taxes.

     SECTION  2.20  TERMINATION  OR  ASSIGNMENT  OF  COMMITMENTS  UNDER  CERTAIN
CIRCUMSTANCES.

          (a) If any Bank (or Transferee) or the Administrative Agent claims any
additional amounts payable pursuant to Section 2.13 or Section 2.19 or exercises
its rights under Section 2.14, it shall  (consistent  with legal and  regulatory
restrictions)  (i)  promptly  notify the Borrower  (through  the  Administrative
Agent)  of the  circumstances  giving  rise to such  additional  amounts  or the
exercise of such rights and (ii) file any  certificate or document  requested by
the Borrower or change the jurisdiction of its applicable Lending Office or take
any other  action if the making of such a filing or change or the taking of such
action  would  avoid the need for or reduce  the  amount of any such  additional
amounts which may thereafter  accrue or avoid the  circumstances  giving rise to
such  exercise  and  would  not,  in the  sole  determination  of such  Bank (or
Transferee), be otherwise disadvantageous to such Bank (or Transferee).

          (b) In the  event  that any Bank  shall  have  delivered  a notice  or
certificate  pursuant to Section 2.13 or 2.14, or the Borrower shall be required
to make  additional  payments to any Bank under Section 2.19, the Borrower shall
have the right, at its option and own expense,  upon notice to such Bank and the
Administrative  Agent,  (i) in the case of Sections 2.13,  2.14 or 2.19 only, to
terminate  the  Commitment  of such Bank or (ii) in all cases  described in this
paragraph,  to require  such Bank to transfer  and assign  without  recourse (in
accordance  with and subject to the  restrictions  contained in Section 9.4) all
its interests,  rights and obligations under this Agreement to another financial
institution reasonably acceptable to the Administrative Agent which shall assume
such  obligations;  PROVIDED that (i) no such  termination  or assignment  shall
conflict with any law, rule or regulation or order of any Governmental Authority
and (ii) the  Borrower  or the  assignee,  as the case may be,  shall pay to the

                                       23

affected Bank in immediately  available funds on the date of such termination or
assignment  the principal of and interest  accrued to the date of payment on the
Loans made by it hereunder and all other amounts accrued for its account or owed
to it hereunder,  including  without  limitation  amounts payable and owed to it
pursuant to Sections 2.13, 2.14 and 2.19.

          (c) Each Bank  represents  and warrants to the Borrower that as of the
date hereof it is not aware of any claims  available to it under  Section  2.13,
2.14 or 2.19 or any circumstances which it has determined will enable it to make
any such claims.

     SECTION 2.21 SECURITY INTEREST.

          (a) At all times prior to Termination,  Borrower shall cause the Loans
and  Borrower's  obligations  under this  Agreement to be secured by a valid and
effective  security  agreement  (the  "Security  Agreement"),  duly executed and
delivered by or on behalf of  Borrower,  granting  the  Administrative  Agent on
behalf of the Bank a valid and enforceable security interest in all of the kinds
and  categories  of  personal  property  described  in the  Security  Agreement,
including  without  limitation  its  accounts  receivable  and  other  rights to
payment, general intangibles, inventory and equipment, wherever located, in, to,
or under which  Borrower now has or  hereafter  acquires  any right,  title,  or
interest,  whether present, future, or contingent,  and in Borrower's expectancy
to acquire such property, subject to no prior Liens except for Permitted Liens.

          (b) All of the  documents  required by this  Section  shall be in form
satisfactory to the Administrative Agent and its counsel, and, together with any
UCC  financing  statements  for filing  and/or  recording,  and any other  items
required by the  Administrative  Agent to fully perfect and effectuate the liens
and security interests of the Administrative  Agent contemplated by the Security
Agreement and this  Agreement,  may  heretofore or hereinafter be referred to as
the "Security Documents."

     SECTION 2.22 SWING LINE LOANS.

          (a) In lieu of making  Revolving  Loans, the Swing Line Lender may, in
its  sole  discretion,  on the  terms  and  subject  to the  conditions  of this
Agreement,  make  available to the Borrower upon its request,  from time to time
until the RLC Maturity  Date,  Swing Line Loans.  Subject to the  provisions  of
Section 2.1 hereof, the aggregate outstanding principal amount of all Swing Line
Loans (the "Swing Line Balance") will not exceed the lesser of (i) $5,000,000.00
(the  "Swing Line  Commitment")  or (ii)  together  with the RLC Balance and the
Letter of Credit  Balance,  the Maximum RLC  Commitment.  Until the RLC Maturity
Date,  the Borrower may from time to time borrow,  repay and reborrow under this
Section  2.22.  Each  Swing Line Loan will be made  either  (i) upon  telephonic
notice from the Borrower to the Swing Line Lender on the date of receipt of such
telephonic  notice if such day is a Business  Day and if such notice is received
before 1:00 p.m.  California  time,  or if received  after 1:00 p.m.  California
time,  such Swing Line Loan shall be made on the next  Business Day, or (ii) via
an  automated  sweep  under the Swing Line  Lender's  automated  four-way  sweep
product. Unless otherwise provided pursuant to Section 2.9, each Swing Line Loan
will bear  interest  at the Base Rate.  The  Borrower  will repay the  aggregate
outstanding  principal  amount  of  the  Swing  Line  Loan  upon  demand  by the

                                       24

Administrative  Agent or via an  automated  sweep under the Swing Line  Lender's
automated  four-way sweep product.  Each Swing Line Loan will be made at the San
Francisco  Office of the Swing Line Lender by depositing  the amount  thereof in
United  States  Dollars  to  the  general  account  of  the  Borrower  with  the
Administrative Agent. In connection with each such Swing Line Loan, the Borrower
will furnish to the Administrative  Agent a Borrowing Notice. (b) The Swing Line
Commitment  will be  evidenced by a single  promissory  note,  in the  principal
amount of $5,000,000.00,  dated of even date herewith, substantially in the form
attached hereto as Exhibit "C-1" (the "Swing Line Note"). Borrower shall execute
the Swing Line Note and deliver the same to the  Administrative  Agent on behalf
of the Swing Line Lender.  The Swing Line Note will  represent the obligation of
Borrower to pay the amount of the aggregate unpaid principal amount of all Swing
Line Loans made to the  Borrower  together  with  interest  thereon as  provided
herein.  The entire unpaid  balance of the Swing Line Loans shall be immediately
due and payable in full in immediately  available funds on the RLC Maturity Date
if not sooner paid in full.

          (c) The Swing  Line  Lender,  at any time and from time to time in its
sole and absolute  discretion  will, on behalf of the Borrower (and the Borrower
hereby  irrevocably  authorizes  the Swing Line Lender to so act on its behalf),
request each Bank  (including the Swing Line Lender) to make a Revolving Loan to
the Borrower (which shall be a Base Rate Loan) in an amount equal to such Bank's
pro rata share of the Total Commitment of the aggregate  principal amount of the
Borrower's Swing Line Loans (the "Refunded Swing Line Loans") outstanding on the
date such notice is given.  Unless an Event of Default under  Article  VII(e) or
(f) exists and regardless of whether the conditions  precedent set forth in this
Agreement to the making of a Revolving Loan are then  satisfied,  each Bank will
disburse  directly  to the  Administrative  Agent  its  pro  rata  share  of the
Revolving  Loan prior to 9:00 a.m.  California  time, in  immediately  available
funds on the Business  Day next  succeeding  the date such notice is given.  The
proceeds of such  Revolving  Loans shall be  immediately  paid to the Swing Line
Lender and applied to repay the Refunded  Swing Line Loans of the  Borrower,  as
requested by the Swing Line Lender.

          (d) If,  prior to  refunding a Swing Line Loan with a  Revolving  Loan
pursuant to Section  2.22(c),  an Event of Default under  Article  VII(e) or (f)
exists,  then each Bank shall,  on the date such Revolving Loan was to have been
made for the  benefit of the  Borrower,  purchase  from the Swing Line Lender an
undivided participation interest in the Swing Line Loan. Upon request, each Bank
shall  promptly  transfer to the Swing Line  Lender,  in  immediately  available
funds, the amount of its participation.

                                       25

                                   ARTICLE IIA
                                LETTERS OF CREDIT

     SECTION 2A.1 LETTERS OF CREDIT.

          (a) Provided that the Borrower has satisfied the conditions  precedent
contained in Section 2A.1(b) hereof, the Issuing Bank agrees, from time to time,
to issue and/or renew Letters of Credit on behalf of the Borrower so long as (i)
upon such  issuance  or  renewal,  an  issuance  fee is paid by  Borrower to the
Issuing  Bank in an  amount  equal to  ninety  basis  points  (0.9%)  per  annum
(computed  on the basis of the  actual  number of days  elapsed in a year of 360
days) of the amount of each Letter of Credit, (ii) the Letter of Credit Balance,
after  giving  effect to such  Letter of  Credit,  will not exceed the Letter of
Credit Commitment,  and (iii) the outstanding  aggregate principal amount of all
Borrowings made by all Banks pursuant to their Revolving Loan, together with the
Swing Line Balance and the Letter of Credit Balance, after giving effect to such
Letter of Credit, will not exceed the Maximum RLC Commitment.

          (b) The  obligation  of the  Issuing  Bank to issue  and/or  renew any
Letters of Credit on behalf of the  Borrower  shall be subject to the  following
conditions  precedent  on the date of issuance or renewal of each such Letter of
Credit:

               (i) The Borrower shall execute and deliver to the Issuing Bank an
     application  for letter of credit,  specifying  the amount of the requested
     letter of credit, the requested term thereof, which term may not exceed one
     year, and the beneficiary thereof; and

               (ii) No Event of Default  shall  exist and no event or  condition
     shall exist that after notice or lapse of time, or both would constitute an
     Event of Default.

     SECTION 2A.2 NOTICE. The Issuing Bank shall give the Administrative  Agent,
which shall in turn give to each Bank,  prompt written or telecopy advice of any
notice received from the Borrower pursuant to this paragraph.

     SECTION 2A.3 LETTER OF CREDIT PARTICIPATIONS.

          (a) By the  issuance  of a Letter of Credit and  without  any  further
action on the part of the  Issuing  Bank or the Banks in  respect  thereof,  the
Issuing Bank hereby grants to each Bank, and each Bank hereby  acquires from the
Issuing Bank, a participation  in such Letter of Credit equal to such Bank's RLC
Commitment  percentage,  based upon the RLC Commitments in effect at the time of
any drawing  thereunder (or, if the RLC  Commitments  shall have been terminated
pursuant to Article VII, the RLC Commitments in effect immediately prior to such
termination),  of the face amount of such Letter of Credit,  effective  upon the
issuance  of such  Letter of Credit;  PROVIDED,  HOWEVER,  that no Bank shall be
required to acquire participations in Letters of Credit that would result in its
pro rata  percentage,  based  upon its RLC  Commitment,  of the Letter of Credit
Balance exceeding its RLC Commitment. In consideration and in furtherance of the
foregoing,  each Bank hereby absolutely and unconditionally agrees to pay to the

                                       26

Administrative  Agent,  for the account of the Issuing Bank, in accordance  with
Section 2A.4 below, such Bank's pro rata percentage of each unreimbursed  Letter
of Credit Disbursement made by the Issuing Bank.

          (b)  Each  Bank  acknowledges  and  agrees  that  its  acquisition  of
participations  pursuant to paragraph  (a) above in respect of Letters of Credit
is absolute  and  unconditional  and shall not be  affected by any  circumstance
whatsoever,  including without  limitation the occurrence and continuance of any
Event of Default hereunder, and that each such payment shall be made without any
offset,  abatement,  withholding or reduction whatsoever;  PROVIDED that nothing
herein shall  constitute a waiver of any rights a Bank may have by reason of the
gross negligence or willful misconduct of the Issuing Bank.

     SECTION 2A.4 DISBURSEMENT AND REIMBURSEMENT.

          (a) Promptly  after it shall have  ascertained  that any draft and any
accompanying  documents  presented  under a Letter  of  Credit  appear  to be in
conformity  with the terms and conditions of such Letter of Credit,  the Issuing
Bank  shall  give   written  or  telecopy   notice  to  the   Borrower  and  the
Administrative  Agent of the  receipt  and  amount of such draft and the date on
which payment thereon will be made. If the  Administrative  Agent shall not have
received from the Borrower the payment required  pursuant to paragraph (b) below
by 10:00 a.m., Arizona time, one Business Day after the date on which payment of
a draft presented  under any Letter of Credit has been made, the  Administrative
Agent shall promptly so notify the Issuing Bank and each Bank, specifying in the
notice  to each  Bank  such  Bank's  pro  rata  percentage,  based  upon the RLC
Commitments,  of such Letter of Credit Disbursement.  Each Bank shall pay to the
Administrative Agent, not later than 1:00 p.m., Arizona time, on such date, such
Bank's   percentage   of  such   Letter  of  Credit   Disbursement,   which  the
Administrative  Agent shall promptly pay to the Issuing Bank. The Administrative
Agent will  promptly  remit to each Bank such Bank's  percentage  of any amounts
subsequently  received by the Administrative  Agent from the Borrower in respect
of such Letter of Credit Disbursement; PROVIDED that (i) amounts so received for
the account of any Bank prior to payment by such Bank of amounts  required to be
paid by it  hereunder in respect of any Letter of Credit  Disbursement  and (ii)
amounts  representing  interest  on any  Letter of Credit  Disbursement  for the
period prior to the payment by such Bank of such  amounts  shall in each case be
remitted to the Issuing Bank.

          (b) If the Issuing Bank shall pay any draft  presented  under a Letter
of Credit,  the Borrower shall pay to the Issuing Bank or to the  administrative
Agent for the account of the Issuing Bank or, if the Administrative  Agent shall
have received the payments  provided in paragraph (a) above with respect to such
drawing,  for the  accounts of the Banks,  an amount equal to the amount of such
draft before 10:00 a.m., Arizona time, on the Business Day immediately following
the date of payment of such draft,  together  with  interest on such amount at a
rate per annum  equal to the  interest  rate in effect for Base Rate  Borrowings
from (and  including)  the date of payment of such draft to (but  excluding) the
date of such payment by the Borrower.  The obligation of the Borrower to pay the
amounts referred to above in this paragraph (b) shall be absolute, unconditional
and irrevocable  and shall be satisfied  strictly in accordance with their terms
irrespective of:

                                       27

               (i) any lack of  validity  or  enforceability  of any  Letter  of
     Credit;

               (ii) the existence of any claim,  setoff,  defense or other right
     which the  Borrower  or any other  Person may at any time have  against the
     beneficiary  under any  Letter of Credit,  the  Administrative  Agent,  any
     Issuing  Bank or any Bank (other than the defense of payment in  accordance
     with the terms of this Agreement or a defense based on the gross negligence
     or  willful  misconduct  of the  Issuing  Bank)  or  any  other  Person  in
     connection with this Agreement or any other transaction;

               (iii) any  draft or other  document  presented  under a Letter of
     Credit  proving to be forged,  fraudulent  or invalid in any respect or any
     statement therein being untrue or inaccurate in any respect;  PROVIDED that
     payment  by  the  Issuing   Bank  under  such  Letter  of  Credit   against
     presentation  of such draft or document  shall not have  constituted  gross
     negligence or willful misconduct;

               (iv) payment by the Issuing Bank under a Letter of Credit against
     presentation  of a draft or other  document  which  does not  comply in any
     immaterial  respect with the terms of such Letter of Credit;  PROVIDED that
     such  payment  shall  not have  constituted  gross  negligence  or  willful
     misconduct; or

               (v) any other  circumstance or event  whatsoever,  whether or not
     similar to any of the foregoing;  PROVIDED that such other  circumstance or
     event  shall  not have  been the  result  of gross  negligence  or  willful
     misconduct of the Issuing Bank.

          It is  understood  that in making any payment under a Letter of Credit
(1) the Issuing Bank's exclusive reliance on the documents presented to it under
such  Letter of Credit as to any and all matters  set forth  therein,  including
without  limitation,  reliance on the amount of any draft  presented  under such
Letter of Credit,  whether or not the amount due to the  beneficiary  equals the
amount of such draft and whether or not any document  presented pursuant to such
Letter of Credit proves to be forged,  fraudulent or invalid in any respect,  if
such  document on its face appears to be in order,  and whether or not any other
statement  or any other  document  presented  pursuant  to such Letter of Credit
proves to be forged or invalid or any statement  therein proves to be inaccurate
or untrue in any respect whatsoever, and (2) any noncompliance in any immaterial
respect  of the  documents  presented  under a Letter of  Credit  with the terms
thereof  shall,  in either  case,  not be  deemed  willful  misconduct  or gross
negligence of the Issuing Bank.

     SECTION 2A.5 EXISTING LETTERS OF CREDIT. On and after the Closing Date, the
Existing  Letters of Credit  shall be deemed for all  purposes  to be Letters of
Credit  outstanding  under this  Agreement  and entitled to the benefits of this
Agreement  and  the  other  Loan  Documents,   and  shall  be  governed  by  the
applications and agreements pertaining thereto and by this Agreement;  PROVIDED,
HOWEVER,  that,  notwithstanding any other provision of this Agreement,  no fees
with  respect to the  issuance of the  Existing  Letters of Credit  shall be due
hereunder.

                                       28

                                   ARTICLE III
                         REPRESENTATIONS AND WARRANTIES

     The  Company  and  each  Co-Borrower,  to  the  extent  applicable,  hereby
represents and warrants to the Administrative Agent and the Banks as follows:

     SECTION 3.1  ORGANIZATION;  CORPORATE  POWERS;  ETC.  (a) The Borrower is a
corporation duly organized, validly existing and in good standing under the laws
of the  jurisdiction  of its  incorporation;  (b) the Borrower has the corporate
power and  authority to own its property and assets and to carry on its business
as now  conducted  and is qualified to do business in every  jurisdiction  where
such  qualification is required except where the failure to so qualify would not
result in a material  adverse  effect on the  business,  assets,  operations  or
condition (financial or otherwise) of the Borrower; and (c) the Borrower has the
corporate  power to execute,  deliver and perform this  Agreement  and the other
Loan Documents and to borrow hereunder.

     SECTION 3.2 AUTHORIZATION;  ETC. The execution, delivery and performance by
the Borrower of this  Agreement,  the  Borrowings  hereunder,  and the issuance,
execution  and  delivery  of the  Notes:  (a) have been duly  authorized  by all
requisite  corporate action;  (b) will not violate (i) any provision of law, any
order of any  court,  or any rule,  regulation  or order of any other  agency of
government,  (ii) the  Articles of  Incorporation  or By-laws of the Borrower or
(iii) any provision of any material indenture,  agreement or other instrument to
which the Borrower is a party, or by which the Borrower or any of its properties
or assets are or may be bound;  (c) will not be in  conflict  with,  result in a
breach of or  constitute  (alone,  with notice,  with lapse of time, or with any
combination of these factors) a default under any indenture,  agreement or other
instrument  referred  to in  (b)(iii)  above;  and (d)  will not  result  in the
creation or  imposition  of any Lien upon any property or assets of the Borrower
that is not a Permitted Lien. Except for filings which may be required under the
1934 Act, no  registration  with or consent or approval  of, or other action by,
any  Governmental  Authority  is  required  in  connection  with the  execution,
delivery and  performance of this  Agreement,  the execution and delivery of the
Notes or the Borrowings hereunder.

     SECTION 3.3 ENFORCEABILITY. This Agreement constitutes, and each other Loan
Document when duly executed and delivered by the Borrower will  constitute,  the
legal, valid and binding  obligation of the Borrower,  enforceable in accordance
with its terms,  subject,  as to the  enforcement  of  remedies,  to  applicable
bankruptcy,  reorganization,  insolvency,  moratorium  and other laws of general
applicability  relating to or affecting  creditors'  rights from time to time in
effect  and  to  general  principles  of  equity  (regardless  of  whether  such
enforcement is considered in a proceeding at law or in equity).

     SECTION 3.4 FINANCIAL CONDITION AND INFORMATION.

          (a) The Borrower has  heretofore  furnished to the Banks copies of (i)
the consolidated balance sheets of the Borrower as of December 31, 2000, and the
related  consolidated  statements  of  income  and  shareholder's  equity of the
Borrower for the year ended December 31, 2000,  including without limitation the
related  notes,  audited by and  including  the opinion the  independent  public
accountants  of the  Borrower,  and (ii) the Annual  Report on Form 10-K for the

                                       29

fiscal year ended December 31, 2000 of the Borrower.  Such financial  statements
fairly  state the  consolidated  financial  condition  of the Borrower as of the
respective  dates thereof and the  consolidated  results of the  operations  and
changes in financial  position of the Borrower for the periods covered  thereby.
All such financial  statements,  including  related schedules and notes thereto,
have been prepared in accordance with GAAP.

          (b) Borrower (both before and after giving effect to the  transactions
contemplated hereby) is solvent, has assets having a fair value in excess of the
amount  required to pay its probable  liabilities  on its existing debts as they
become absolute and matured,  and has, and will have, access to adequate capital
for the  conduct of its  business  and the ability to pay its debts from time to
time incurred in connection therewith as such debts mature.

     SECTION 3.5 NO MATERIAL ADVERSE CHANGE.  There has been no material adverse
change in the business, operations, assets or condition (financial or otherwise)
of the Borrower and its  Significant  Subsidiaries,  taken as a whole (except as
disclosed in the financial statements referred to in Section 3.4).

     SECTION 3.6 LITIGATION.  There are no actions,  suits or proceedings at law
or in equity or by or before any  governmental  instrumentality  or other agency
now  pending  or,  to the  knowledge  of the  Borrower,  threatened  against  or
affecting the Borrower or any property or rights of the Borrower  which would be
reasonably  likely in the aggregate to (i) materially  impair the ability of the
Borrower  to  perform  its  obligations  under  this  Agreement  or the Notes or
materially impair the ability of the Borrower to carry on business substantially
as now being  conducted  or (ii) result in any  material  adverse  change in the
business,  assets,  operations,  or condition  (financial  or  otherwise) of the
Borrower.

     SECTION 3.7 FEDERAL RESERVE REGULATIONS.

          (a)  The  Borrower  is  not  engaged  principally,  or as  one  of its
important  activities,  in the business of  extending  credit for the purpose of
purchasing or carrying Margin Stock.

          (b) No part of the proceeds of any Loan will be used, whether directly
or indirectly,  and whether  immediately,  incidentally  or  ultimately,  (i) to
purchase or carry Margin Stock or to extend  credit to others for the purpose of
purchasing  or  carrying  Margin  Stock  or to  refund  indebtedness  originally
incurred for such purpose, or (ii) for any purpose which entails a violation of,
or which is  inconsistent  with, the provisions of the Regulations of the Board,
including Regulation U or X.

     SECTION 3.8  INVESTMENT  COMPANY ACT.  The  Borrower is not an  "investment
company" or a company "controlled" by an "investment company" within the meaning
of the Investment Company Act of 1940, as amended.

     SECTION 3.9 PUBLIC  UTILITY  HOLDING  COMPANY  ACT.  The  Borrower is not a
"holding  company,"  or a  "subsidiary  company" of a "holding  company,"  or an
"affiliate"  of a "holding  company" or of a "subsidiary  company" of a "holding
company,"  within the meaning of the Public Utility Holding Company Act of 1935,
as amended.

                                       30

     SECTION  3.10 TAX  RETURNS.  As of the filing date of the  Borrower's  Form
10-K,  Form 10-Q or Form 8-K most recently  filed with the SEC, the Borrower has
duly filed or caused to be filed all federal,  state and local tax returns which
are  required to have been filed and has paid or caused to be paid all  material
taxes  required to be paid by it,  except  taxes the  validity of which is being
contested in good faith by appropriate proceedings and with respect to which the
Borrower has set aside on its books such reserves as are required by GAAP.

     SECTION 3.11 ERISA. As of the filing date of the Borrower's Form 10-K, Form
10-Q or Form 8-K most recently  filed with the SEC, the Borrower had no material
undisclosed ERISA Liabilities under any Plans.

     SECTION  3.12 TITLE TO  PROPERTIES:  POSSESSION.  The Borrower has good and
indefeasible  title  to,  or valid  leasehold  interests  in,  all its  material
properties and assets, subject only to encumbrances,  adverse claims and defects
in title which do not involve any risk of loss that is material to the  Borrower
and the  Subsidiaries  taken as a whole. All such assets and properties are free
and clear of all Liens other than those  permitted  by Section 6.1. The Borrower
has  all  licenses  and  rights  necessary  to  enable  it to use  all  material
technology used by it in its operations.

     SECTION  3.13 USE OF PROCEEDS.  The  Borrower  will use the proceeds of any
borrowing  hereunder  solely for the  purposes set forth in the Recitals to this
Agreement.

     SECTION 3.14 ENVIRONMENTAL MATTERS.  Except as disclosed by the Borrower to
the Banks in writing prior to the date hereof,  the Borrower and each Subsidiary
is in compliance in all material  respects with all applicable  federal or state
environmental,  hazardous waste,  health and safety  statutes,  and any rules or
regulations  adopted  pursuant  thereto,  which  govern  or  affect  any  of the
Borrower's  operations  and/or  properties,  including without  limitation,  the
Comprehensive  Environmental  Response,  Compensation and Liability Act of 1980,
the Superfund  Amendments and  Reauthorization Act of 1986, the Federal Resource
Conservation and Recovery Act of 1976, and the Federal Toxic Substances  Control
Act, as any of the same may be amended,  modified or  supplemented  from time to
time. None of the operations of the Borrower or any Subsidiary is the subject of
any  federal or state  investigation  evaluating  whether  any  remedial  action
involving a material  expenditure is needed to respond to a release of any toxic
or hazardous waste or substance into the  environment.  Neither Borrower nor any
Subsidiary has material  contingent  liability in connection with any release of
any toxic or hazardous waste or substance into the environment.

     SECTION 3.15  SUBSIDIARIES.  All Subsidiaries  are correctly  identified on
Schedule "3.15" hereto.

     SECTION 3.16 NO SUBORDINATION.  There is no agreement,  indenture, contract
or  instrument  to which the Borrower is a party or by which the Borrower may be
bound  that  requires  the  subordination  in  right  of  payment  of any of the
Borrower's  obligations subject to this Agreement to any other obligation of the
Borrower.

     SECTION  3.17  PERMITS,   FRANCHISES.  The  Borrower  possesses,  and  will
hereafter possess,  all permits,  consents,  approvals,  franchises and licenses
required and rights to all  trademarks,  trade names,  patents,  and  fictitious
names, if any, necessary to enable it to conduct the business in which it is now
engaged in compliance with applicable law.

     SECTION  3.18  OTHER  OBLIGATIONS.  Borrower  is  not  in  default  on  any
obligation  for borrowed  money,  any  purchase  money  obligation  or any other
material lease, commitment, contract, instrument or obligation.

                                       31

                                   ARTICLE IV
                           CONDITIONS TO CREDIT EVENTS

     The  obligations  of the Banks to make each and every Loan and of the Swing
Line  Lender to make the  initial  Swing Line  Loan,  and to make each and every
advance of the proceeds  thereof  (each of the  foregoing  events being called a
"Credit Event") are subject to the prior or contemporaneous  satisfaction of the
following conditions:

     SECTION 4.1 CREDIT EVENTS. On the date of each Credit Event,  including the
date of each reborrowing of a Borrowing as contemplated by Section 2.5:

          (a) The  Administrative  Agent shall have  received in respect of such
advance or reborrowing a Borrowing Notice as required by Section 2.3.

          (b) The representations and warranties set forth in Article III hereof
shall have been true and correct in all material  respects  both (i) on the date
hereof and (ii) as of such date, except to the extent such  representations  and
warranties expressly relate and are limited to a different date.

          (c) At the time of and  immediately  after such advance or reborrowing
no Event of Default or Potential  Default  shall have occurred and be continuing
or shall exist.

Each  advance  or  refinancing   hereunder  shall  be  deemed  to  constitute  a
representation  and warranty by the Borrower on the date of such Credit Event as
to the  satisfaction  of the  conditions  specified in paragraphs (b) and (c) of
this Section 4.1.

     SECTION 4.2 FIRST CREDIT EVENT. On the Closing Date:

          (a) Each Bank and the Swing  Line  Lender  shall  have  received  duly
executed  copies of this  Agreement,  the Security  Documents and all other Loan
Documents.

          (b) Each Bank shall have received a duly executed Note  complying with
the  provisions  of Section 2.7 and the Swing Line Lender shall have  received a
duly executed Swing Line Note complying with the provisions of Section 2.22(b).

          (c) The  Administrative  Agent shall have received as to each Borrower
(i) a copy of its  Certificate  or  Articles  of  Incorporation,  including  all
amendments  thereto,  certified as of a recent date by the Secretary of State of
the state of its organization, and a certificate from such Secretary of State as
of a recent date, as to its good  standing;  (ii) a certificate of its Secretary
or Assistant  Secretary  dated the Closing Date and certifying (A) that attached
thereto is a true and  complete  copy of its By-Laws as in effect on the Closing
Date  and at all  times  since  a date  prior  to the  date  of the  resolutions
described in the next clause of this  sentence,  (B) that attached  thereto is a
true and complete  copy of  resolutions  duly adopted by its Board of Directors,

                                       32

authorizing  the execution,  delivery and  performance of the Loan Documents and
the Credit Events  hereunder,  and that such resolutions have not been modified,
rescinded or amended and are in full force and effect,  (C) that its Certificate
or Articles of  Incorporation  have not been amended  since the date of the last
amendment thereto shown on its certificate of good standing  furnished  pursuant
to clause (i) above, and (D) as to the incumbency and specimen signature of each
officer  executing  any  Loan  Document  or  any  other  document  delivered  in
connection herewith on its behalf; and (iii) a certificate of another officer as
to the incumbency and specimen signature of the Secretary or Assistant Secretary
executing the certificate pursuant to (ii) above.

          (d) The Administrative Agent shall have received a certificate,  dated
the Closing Date and signed on behalf of the Borrower by a Financial  Officer of
the Borrower,  confirming  compliance with the conditions precedent set forth in
paragraphs (b) and (c) of Section 4.1.

          (e) The  Administrative  Agent shall have received a favorable written
opinion of legal counsel to the  Borrower,  dated the Closing Date and addressed
to the  Administrative  Agent and the Banks,  to the effect set forth in Exhibit
"E" hereto.

          (f) The  Administrative  Agent shall have received all amounts due and
payable  hereunder or under the other Loan  Documents on or prior to the Closing
Date.

          (g) The  Administrative  Agent  shall  have  received  payment  of all
expenses owed to the Banks pursuant to Section 9.5(a).

          (h) All legal matters  incident to this Agreement and the first Credit
Event hereunder  shall be reasonably  satisfactory to the Banks and to the legal
counsel for the Administrative Agent.

          (i) The Administrative Agent shall have received evidence satisfactory
to it that the 1999  Agreement has been or will be terminated  and all loans and
other amounts and letters of credit outstanding  thereunder have been or will be
paid in full or assumed hereunder, on or prior to the Closing Date.

          (j) The Administrative Agent shall have received landlord lien waivers
as to each  location  where  Collateral  is  located in  premises  leased to the
Borrower.

          (k) The Administrative  Agent shall have entered into on behalf of the
Banks  an   Intercreditor   Agreement  with  Wells  Fargo  as  to  the  existing
Indebtedness described in Schedule 6.2.

          (l) The  Administrative  Agent  shall have  received  such  additional
documents as the Banks and the Administrative Agent may reasonably require.

                                       33

                                    ARTICLE V
                              AFFIRMATIVE COVENANTS

     The Company and each Co-Borrower,  to the extent applicable,  covenants and
agrees that, at all times prior to Termination,  unless the Required Banks shall
otherwise consent in writing, it will:

     SECTION  5.1  CORPORATE  EXISTENCE.  Do or  cause  to be  done  all  things
necessary  to  preserve,  renew and keep in full force and effect its  corporate
existence,  material rights,  licenses,  permits and franchises  material to the
conduct of its  business  and that of its  Subsidiaries;  comply in all material
respects with all applicable laws, rules,  regulations,  and orders (except that
force majeure events will excuse  noncompliance so long as  noncompliance  would
not  materially  impair the  creditworthiness  of the  Borrower)  whether now in
effect or hereafter  enacted  where the failure to so comply would be reasonably
likely to have a material adverse effect on the business,  assets, operations or
condition  (financial or otherwise) of the Borrower or that of its Subsidiaries;
and, at all times maintain and preserve all material  property  required for the
conduct of its business and that of its  Subsidiaries  as presently or hereafter
conducted.

     SECTION 5.2 INSURANCE. Maintain adequate insurance by financially sound and
reputable insurers of all properties of a character usually insured by companies
engaged in the same or a similar business  operating on a similar economic scale
as the Borrower and its Subsidiaries against loss or damage resulting from fire,
flood, property damage, workers compensation,  or other risks insured against by
extended coverage and of the kind customarily insured against by such companies,
and maintain in full force and effect public liability  insurance against claims
for personal  injury,  death or property damage  occurring upon, in, about or in
connection  with the use of any properties  occupied or controlled by it and its
Subsidiaries in such amounts as shall be customary  among  companies  engaged in
the same or similar  businesses  and similarly  situated and maintain such other
insurance  as  may be  required  by  law  with  deductibles  not  in  excess  of
$500,000.00 per occurrence for personal  injury and property  damage  liability,
cargo  liability  and  collision  and  comprehensive,   and  not  in  excess  of
$250,000.00 per occurrence for worker's compensation.

     SECTION 5.3 TAXES AND OTHER  LIABILITIES.  Pay and  discharge  promptly any
taxes,  assessments and governmental charges or levies imposed upon the Borrower
or any of its  Subsidiaries or upon their income or profits or in respect of the
Collateral or any material property (real or personal) of the Borrower or as any
of its Subsidiaries, before the same shall become delinquent; PROVIDED, HOWEVER,
that neither the Borrower nor any of the  Subsidiaries  shall be required to pay
and discharge or to cause to be paid and  discharged any such  obligation,  tax,
assessment,  charge,  levy or claim so long as the  validity  or amount  thereof
shall be contested in good faith by appropriate  proceedings and the Borrower or
such Subsidiary,  as appropriate,  shall set aside on its books such reserves as
are required by GAAP with respect thereto.

     SECTION 5.4 FINANCIAL  STATEMENTS;  REPORTS,  ETC. Cause to be furnished to
the Administrative Agent (as Information subject to the applicable  requirements
of Section 9.17 herein, if any):

                                       34

          (a)  (i)  within  120  days  after  the  end  of  each  fiscal   year,
consolidated and  consolidating,  (A) a balance sheet, (B) a statement of income
and (C) a statement of cash flow,  each showing the  financial  condition of the
Borrower  and its  Subsidiaries  as of the  close  of such  fiscal  year and the
results of  operations  during such fiscal  year,  all the  foregoing  financial
statements to be prepared in accordance with GAAP, audited by an accounting firm
of nationally  recognized  standing with an unqualified  opinion from such firm,
and (ii) promptly when filed by the Borrower with the SEC,  Borrower's Form 10-K
for such fiscal year;

          (b) within 60 days after the end of each fiscal quarter of each fiscal
year of the  Borrower or, if earlier,  when filed by the Borrower  with the SEC,
Borrower's  Form 10-Q for such fiscal quarter  together with  consolidating  (if
applicable and if requested by the Administrative  Agent) and fully consolidated
company-prepared    financial   statements   including,    without   limitation,
consolidating (if applicable and if requested by the  Administrative  Agent) and
fully  consolidated  balance  sheets as of the end of that fiscal  quarter,  and
consolidating (if applicable and if requested by the  Administrative  Agent) and
fully  consolidated  statements  of income for the fiscal  quarter,  prepared in
accordance with GAAP by the Borrower;

          (c) concurrently  with each delivery of the statements  referred to in
(a) and (b) above, the Quarterly Certificate certifying that to the best of its,
his or her knowledge no Event of Default or Potential Default has occurred,  or,
if such an Event of Default or Potential  Default has occurred,  specifying  the
nature and extent thereof and accompanied by a statement of a Financial  Officer
of the Borrower  specifying any corrective  action taken or proposed to be taken
with respect  thereto,  and setting  forth in  reasonable  detail in the form of
Exhibit  "F" the  calculation  of  financial  measures  and ratios  required  to
demonstrate  compliance with the covenants,  conditions and agreements contained
in Section 5.11 hereof,  all  determined as of the end of the period  covered by
said statements;

          (d)  within  10 days of  their  being  filed,  in  addition  to  those
delivered by Borrower to the Administrative Agent pursuant to (a) and (b) above,
copies of all reports (other than  preliminary  proxy  statements)  filed by the
Borrower with the SEC (or any Governmental Authority succeeding to any or all of
the  functions  of the SEC)  under  the  requirements  of the 1934  Act,  or any
successor statute; and

          (e) promptly,  from time to time, such other information regarding the
operations,  business  affairs and  financial  condition of the Borrower and its
Subsidiaries as the Administrative Agent may reasonably request.

     SECTION 5.5  LITIGATION AND OTHER NOTICES.  Give the  Administrative  Agent
prompt  (but in no event  more than five (5) days after the  occurrence  of each
such event or matter)  written or telecopy  notice in  reasonable  detail of the
following:

          (a) the occurrence of any Event of Default, or any condition, event or
act  which  with the  giving  of notice  or the  passage  of time or both  would
constitute an Event of Default;

          (b)  any  change  in the  name  or  the  organizational  structure  of
Borrower;

                                       35

          (c) the occurrence  and nature of any  Reportable  Event or Prohibited
Transaction, each as defined in ERISA, or any funding deficiency with respect to
any Plan;

          (d) any  termination  or  cancellation  of any insurance  policy which
Borrower is required to maintain,  or any uninsured or partially  uninsured loss
through  liability or property damage, or through fire, theft or any other cause
affecting Borrower's property; or

          (e)  the  filing  or  commencement  of  any  action,  suit  or  formal
proceeding  at law or in equity or by or before any court or hearing  officer of
any Governmental Authority involving amounts in excess of $5,000,000.00,  or any
other event or condition,  which has resulted in, or which is reasonably  likely
to result in, a material adverse change in the business, operations or condition
(financial or otherwise) of the Borrower and the  Subsidiaries  taken as a whole
and which has not been  reported  in the  Borrower's  most recent SEC filings on
Form 10-K, 10-Q or 8-K.

     SECTION 5.6 MAINTAINING RECORDS:  ACCESS TO PREMISES AND RECORDS.  Maintain
all financial records in accordance with GAAP, and upon reasonable notice permit
representatives of the Administrative Agent and each Bank to have access to such
financial  records and the premises of the Borrower at  reasonable  times and to
make such excerpts from such records as such representatives may deem necessary,
provided  that each person  obtaining  information  shall hold all  confidential
information  obtained in accordance with the  restrictions  set forth in Section
9.17.

     SECTION 5.7 USE OF  PROCEEDS.  Use the proceeds of the Loans solely for the
purposes set forth in Recitals hereto.

     SECTION 5.8 PUNCTUAL PAYMENTS. Punctually pay all principal, interest, fees
or other  liabilities due under any of the Loan Documents at the times and place
and in the manner specified therein.

     SECTION 5.9  COMPLIANCE.  Preserve  and  maintain  all  licenses,  permits,
governmental  approvals,  rights,  privileges and  franchises  necessary for the
conduct  of its  business;  and  comply  with the  provisions  of all  documents
pursuant to which the Borrower is organized  and/or which govern the  Borrower's
continued  existence and with the requirements of all laws,  rules,  regulations
and orders of any  governmental  authority  applicable  to  Borrower  and/or its
business.

     SECTION  5.10  FACILITIES.  Keep all  properties  useful  or  necessary  to
Borrower's and that its Subsidiaries business in good repair and condition,  and
from time to time make necessary repairs,  renewals and replacements  thereto so
that such properties shall be fully and efficiently preserved and maintained.

     SECTION 5.11 FINANCIAL COVENANTS. Maintain Company's financial condition as
follows  using GAAP,  calculated on a  consolidated  basis (except to the extent
modified by the definitions herein) (the "Financial Covenants"):

          (a) Its Tangible Net Worth of not less than $95,000,000.00 plus 50% of
positive  net income and not  reduced  for any net  losses,  measured  quarterly
commencing   March  31,  2001,  with  "Tangible  Net  Worth"  defined  as  total
stockholders' equity less its intangible assets, plus its Subordinated Debt.

                                       36

          (b) Its EBITDA  Coverage Ratio of not less than 3.00 to 1.0 as of each
fiscal quarter end,  determined on a rolling  four-quarter  basis, with "EBITDA"
defined  as net profit  before tax plus  interest  expense  (net of  capitalized
interest  expense),  depreciation  expense and  amortization  expense,  and with
"EBITDA  Coverage  Ratio"  defined as EBITDA  divided by the  aggregate of total
interest  expense plus the prior period  current  maturity of long-term debt and
the prior  period  current  maturity of  subordinated  debt plus  dividends  and
distributions.

          (c) Its Funded Debt to EBITDA  ratio of not at any time  greater  than
1.50 to 1.0, on a trailing  four-quarter  basis,  as of each fiscal quarter end,
with "Funded Debt to EBITDA Ratio" defined as Funded Debt divided by EBITDA, and
with "Funded  Debt"  defined as the  aggregate of both the long-term and current
portions (without duplication) of all indebtedness or liabilities resulting from
borrowings, loans or advances and capitalized lease obligations, plus the stated
amounts of any issued and  outstanding  Letters of Credit,  and with "EBITDA" as
defined and calculated above.

          (d) Its net income after tax determined at the end of each fiscal year
of not less than $1.00 for such fiscal  year and its  pre-tax  profit as of each
fiscal quarter at the end of such fiscal quarter of not less than $1.00.

          (e) Its Minimum  Asset  Coverage of not less than 120.0% at all times,
where  "Minimum  Asset  Coverage"  is  defined  as (i) the sum of its cash,  net
accounts  receivable,  real estate book value (which may consist of no more than
$25,000,000.00)  and  rolling  stock (such as trucks and  trailers)  at net book
value  which  are  free  and  clear of any and all  Liens  (except  those of the
Administrative  Agent  for  the  benefit  of  the  Banks,  those  of  the  Banks
individually and those pursuant to Capital  Leases),  (ii) divided by the sum of
its accounts payable (as so described on its consolidated  financial statements)
and its total outstanding  Indebtedness,  including without limitation the Total
Commitment and other funded and unfunded but committed Indebtedness.

     SECTION 5.12 NEW  SUBSIDIARIES;  CO-BORROWER.  Borrower  shall promptly and
diligently  take  all  actions  necessary  to  cause  any  existing  Significant
Subsidiary  not a Co-Borrower  and that  subsequently  undertakes to conduct any
business  or  operations,  and  any  new  Significant  Subsidiary  (each  a "New
Subsidiary")  to  become  a  Co-Borrower  and  a  "Debtor"  under  the  Security
Documents.  Within  thirty  (30)  days of being  acquired,  or in the case of an
existing  Significant  Subsidiary  within  thirty  (30) days of  undertaking  to
conduct any business or operations  (the "Grace  Period"),  such New  Subsidiary
shall deliver to the Banks an executed Assumption Agreement in the form attached
hereto as Exhibit  "G",  a Security  Agreement  in the form  attached  hereto as
Exhibit "H", a UCC-1  Financing  Statement and such other documents as the Banks
may reasonably request.  The term "Co-Borrower" shall mean that such Significant
Subsidiary  shall be jointly  liable,  and each  severally  and  unconditionally
liable,  for the full  payment  and  satisfaction  of the  Loans  and all  other
obligations of Borrower under this  Agreement.  The term "Debtor" shall have the
meaning set forth in the Security Agreement.

                                       37

                                   ARTICLE VI
                               NEGATIVE COVENANTS

     The Company and each Co-Borrower,  to the extent applicable,  covenants and
agrees that, at all times prior to Termination, IT WILL NOT, and WILL NOT PERMIT
ANY SUBSIDIARY to:

     SECTION 6.1 LIENS.  Incur,  create,  assume or permit to exist any Liens on
any of  Borrower's  property  or  assets  or that of any  Subsidiary,  including
without  limitation,  "accounts" and "inventory" (each as defined in the Arizona
Uniform  Commercial  Code) and  unencumbered  fixed  assets  (including  without
limitation tractors, trailers and real estate) or such property or assets of any
Subsidiary,  whether such property or assets are now owned or hereafter acquired
by Borrower,  or by a  Subsidiary,  or on any income or rights in respect of any
thereof, to secure any Indebtedness; PROVIDED that the foregoing shall not apply
to Liens on the property or assets of Borrower or any Subsidiary:

               (i) existing on the date hereof and  described in Schedule  "6.1"
     and any refinancing thereof;

               (ii) in favor of the Administrative  Agent for the benefit of the
     Banks under the Security Documents; or

               (iii) that secures the Indebtedness permitted pursuant to Section
     6.2.

     SECTION 6.2 INDEBTEDNESS.  Become or remain obligated either directly or as
a guarantor or surety for any  Indebtedness  for borrowings,  loans or advances,
whether secured or unsecured, matured or unmatured,  liquidated or unliquidated,
joint or  several,  or for any  Indebtedness  incurred  in  connection  with the
acquisition of any property, real or personal, tangible or intangible including,
but not limited to, lease purchase agreements or sale leasebacks, except:

          (a) Indebtedness to the Banks hereunder;

          (b)  Unsecured  trade,  utility  or  accounts  payable  arising in the
ordinary course of its business;

          (c) The Indebtedness disclosed on Schedule 6.2 attached hereto and any
other Indebtedness disclosed in the most recent financial statements of Borrower
submitted to the Banks on or prior to the date of this Agreement; and

          (d)  Capital  purchases  not  to  exceed   $50,000,000.00,   including
operating leases, capital leases and debt.

     SECTION  6.3  MERGER,  CONSOLIDATION,  TRANSFER  OF  ASSETS.  Merge into or
consolidate with any other entity without the written consent of the Banks; make
any substantial  change in the nature of Borrower's  business as conducted as of
the date  hereof;  acquire all or  substantially  all of the assets of any other

                                       38

entity without the written consent of the Banks;  nor sell,  lease,  transfer or
otherwise  dispose of all or a  substantial  or material  portion of  Borrower's
assets  except in the  ordinary  course of its  business,  nor transfer all or a
substantial or material portion of its assets to its Subsidiaries.

     SECTION  6.4  ACCOUNTING  CHANGE.  Change  the  times  of  commencement  or
termination  of its  fiscal  year or other  accounting  periods;  or change  its
methods of accounting  other than to conform to GAAP so as to  constitute  sound
accounting practice.

     SECTION  6.5  GUARANTEE.  Except  with  respect to  Indebtedness  permitted
pursuant to Section 6.2 hereof, guarantee,  directly or indirectly, or otherwise
become  contingently liable or obligated for, any indebtedness or obligations of
any other person or entity (except for the endorsement in the ordinary course of
business  of  negotiable  instruments  for deposit or  collection)  or pledge or
hypothecate  any  assets  of  Borrower  or  security  for,  any  liabilities  or
obligations of any other person or entity.

     SECTION 6.6 ERISA LIABILITIES.  Create or suffer to exist ERISA Liabilities
in an aggregate amount for all Plans in excess of $1,000,000.00.

     SECTION  6.7  CAPITAL  EXPENDITURES.  Make,  or permit  any  Subsidiary  or
Affiliate,  to make any purchase or acquisition of any fixed or capital  assets,
if the aggregate  amount of all such purchases or acquisitions  shall exceed the
sum permitted  pursuant to Section  6.2(d) in any calendar  year.  The foregoing
restrictions shall not apply to the Borrower's  purchase of tractors or trailers
in the Borrower's normal course of business.

     SECTION 6.8 LOANS, ADVANCES,  INVESTMENTS. Make any loans or advances to or
investments in any person or entity, except any of the foregoing existing as of,
and disclosed to the Banks prior to, the date hereof.

     SECTION  6.9  DIVIDEND,  DISTRIBUTIONS.  Declare  or pay  any  dividend  or
distribution  in excess of fifty percent  (50%) of Borrower's  net income in any
fiscal year either in cash,  stock or any other property on Borrower's stock now
or  hereafter  outstanding,   nor  redeem,  retire,   repurchase  in  excess  of
$15,000,000.00  in  any  12  month  period  effective  as of the  date  of  this
Agreement,  or otherwise acquire any shares of any class of Borrower's stock now
or hereafter outstanding.

                                       39

                                   ARTICLE VII
                                EVENTS OF DEFAULT

     In case of the  happening of any of the  following  events  (herein  called
"Events of Default"):

          (a) default  shall be made in the payment of any principal or interest
on any Loan or any Fee,  indemnification amount or any other amount due from the
Borrower  under  the  Loan  Documents  whether  at the due  date  thereof  or by
acceleration  thereof or  otherwise,  when and as the same shall  become due and
payable;

          (b) any representation or warranty made or deemed made by the Borrower
in connection  with the Loan  Documents or in any report,  certificate  or other
instrument  furnished by the Borrower pursuant to the Loan Documents or with the
Borrowings hereunder shall prove to have been incorrect,  false or misleading in
any material  respect  when made or delivered or when deemed made in  accordance
with the terms hereof;

          (c)  any  default  in  the  performance  of  or  compliance  with  any
obligation,  agreement or other provision  contained herein or in any other Loan
Document  (other than those referred to in subsections  (a) and (b) above),  and
except with respect to any such  default as to a Financial  Covenant or which by
its nature can not be cured;  such default shall continue for a period of twenty
(20) days from its occurrence;

          (d) the  Borrower  or any  Subsidiary  shall fail to make when due any
payment (of whatever amount) on Indebtedness (whether due by scheduled maturity,
required  prepayment,  acceleration,  demand or  otherwise),  including  without
limitation any Indebtedness owed to any Bank and any obligations incurred by the
Borrower or any  Subsidiary  to any Bank or  Affiliate  thereof  pursuant to any
agreement  with respect to any interest  rate swap or similar  transaction;  and
such failure shall  continue after the  applicable  notice and grace period,  if
any, specified in the agreement or instrument relating to such Indebtedness;  or
any failure by the  Borrower to perform any covenant or agreement on its part to
be performed under any agreement or instrument  evidencing or security  relating
to any Indebtedness shall result after the applicable notice and grace period in
the acceleration of the maturity of a portion of such Indebtedness;

          (e) the Borrower shall (i) voluntarily commence any proceeding or file
any  petition  seeking  relief  under Title 11 of the United  States Code or any
other  Federal,  state or foreign  bankruptcy,  insolvency  or similar law, (ii)
consent to the institution of, or fail to controvert in a timely and appropriate
manner, any such proceeding or the filing of any such petition,  (iii) apply for
or consent to the appointment of a receiver, trustee, custodian, sequestrator or
similar official for such corporation or for a substantial part of its property,
(iv) file an answer  admitting  the  material  allegations  of a petition  filed
against it in any such proceeding, (v) make a general assignment for the benefit
of  creditors,  (vi)  become  unable,  admit in writing  its  inability  or fail
generally  to pay its debts as they become due, or (vii) take  corporate  action
for the purpose of effecting any of the foregoing;

                                       40

          (f) an  involuntary  proceeding  shall be commenced or an  involuntary
petition shall be filed in a court of competent  jurisdiction seeking (i) relief
in respect of the Borrower or of a substantial  part of the property under Title
11 of the United States Code or any other Federal,  state or foreign bankruptcy,
insolvency  or  similar  law,  (ii)  the  appointment  of a  receiver,  trustee,
custodian,   sequestrator  or  similar  official  for  the  Borrower  or  for  a
substantial part of its property,  or (iii) the winding-up or liquidation of the
Borrower, and such proceeding or petition shall continue undismissed for 60 days
or an order or  decree  approving  or  ordering  any of the  foregoing  shall be
entered;

          (g) either of (A) the occurrence of any one or more Reportable  Events
or (B) a failure to make a "required  payment"  under the  provisions of Section
412(n)(1) of the Code shall have  occurred with respect to any Plan or Plans and
the  occurrence  of either (A) or (B) above  shall have  resulted  in any of (1)
liability  of the  Borrower to the PBGC or to one or more Plans in an  aggregate
amount  exceeding  $1,000,000.00,  (2) the termination of the respective Plan or
Plans by the PBGC, (3) the appointment by the appropriate United States District
Court of a trustee to administer such Plan or Plans or (4) for the imposition of
a Lien in favor of such Plan or Plans;

          (h) any material  provision of the Loan  Documents  ceases to be valid
and binding on or enforceable against the Borrower;

          (i) there shall have occurred a Change in Control;

          (j) the liquidation,  termination or dissolution of Borrower or any of
its directors,  stockholders  or members shall take action seeking to effect the
dissolution or liquidation of Borrower;

          (k) the occurrence of any adverse change in the financial condition of
Borrower, that the Banks, in their reasonable discretion,  deems material, or if
the  Banks  in good  faith  shall  believe  that  the  prospect  of  payment  or
performance of the Loans is impaired or is likely to be substantially  impaired;
or

          (l) the filing of a notice of judgment lien against  Borrower;  or the
recording  of any abstract of judgment  against  Borrower in any county in which
Borrower  has an interest in real  property;  or the service of a notice of levy
and/or of a writ of attachment or execution, or other like process,  against the
assets of Borrower;  or the entry of a judgment against  Borrower,  in each case
for an amount in excess of  $250,000.00  and subject to the right of Borrower to
contest such action pursuant to Section 5.3 hereof;

then, and in any such event,  and at any time thereafter  during the continuance
of such  event,  the  Administrative  Agent,  shall,  at the sole  option of the
Required Banks and if so directed by the Required  Banks, by written or telecopy
notice to the Borrower, take either or both of the following actions at the same
or different times:

               (i)  terminate  forthwith  any or all  Commitments  of the Banks,
     including without limitation  terminate any obligation of the Banks to make
     any further advances under the RLC Facility.

                                       41

               (ii)  declare  any or all of the  Loans to be  forthwith  due and
     payable,  whereupon  the  principal  of such Loans,  together  with accrued
     interest  thereon and any unpaid accrued Fees and all other  liabilities of
     the Borrower accrued hereunder and under the Notes,  shall become forthwith
     due and payable  together with interest thereon as provided in Section 2.9,
     without presentment,  demand,  protest or any other notice of any kind, all
     of which are hereby  expressly waived by the Borrower,  anything  contained
     herein or in any Note to the contrary notwithstanding;

               (iii)  exercise  any  or all of its  rights  under  the  Security
     Documents and/or available to it pursuant to applicable law; and

               (iv)   require   that  the   Borrower   deposit   cash  with  the
     Administrative  Agent in an amount equal to the Letter of Credit Balance as
     Collateral  (under its sole  dominion and  contract)  for the  repayment of
     drawings under outstanding Letters of Credit;

PROVIDED,  HOWEVER,  that in the  case  of an  Event  of  Default  specified  in
paragraph  (e) or (f)  above  involving  the  Borrower,  without  notice  to the
Borrower  or any  other  act by  the  Administrative  Agent  or the  Banks,  the
Commitments shall  automatically  terminate and all Loans together with all such
interest,  Fees and other amounts, shall become immediately due and payable, all
without  presentment,  demand,  protest or any other notice of any kind,  all of
which are hereby expressly waived by the Borrower,  anything contained herein or
in any Note to the contrary notwithstanding.

                                       42

                                  ARTICLE VIII
                            THE ADMINISTRATIVE AGENT

     SECTION 8.1 APPOINTMENT. In order to expedite the transactions contemplated
by this Agreement, Wells Fargo Bank, National Association is hereby appointed to
act as Administrative  Agent on behalf of the Banks. Each of the Banks, and each
subsequent  holder of any Note by its  acceptance  thereof,  hereby  irrevocably
authorizes  the  Administrative  Agent to take such actions on its behalf and to
exercise such powers as are specifically  delegated to the Administrative  Agent
by the terms and  provisions  hereof and of the other Loan  Documents,  together
with  such  actions  and  powers  as  are  reasonably  incidental  thereto.  The
Administrative Agent is hereby expressly authorized by the Banks, without hereby
limiting  any  implied  authority,  (a) to  receive  on  behalf of the Banks all
payments of principal of and interest on the Loans and all other  amounts due to
the Banks hereunder, and promptly to distribute to each Bank its proper share of
each payment so  received;  (b) to give notice on behalf of each of the Banks to
the Borrower of any Default or Event of Default  specified in this  Agreement of
which the Administrative  Agent has actual knowledge acquired in connection with
its agency hereunder;  and (c) to distribute to each Bank copies of all notices,
financial  statements and other materials  delivered by the Borrower pursuant to
this Agreement as received by the Administrative Agent.

     SECTION  8.2  LIABILITY.  Neither the  Administrative  Agent nor any of its
directors,  officers, employees or agents shall be liable as such for any action
taken or omitted by any of them  except for its or his own gross  negligence  or
willful   misconduct,   or  be  responsible  for  any  statement,   warranty  or
representation  herein or the contents of any document  delivered in  connection
herewith,  or be required to  ascertain  or to make any inquiry  concerning  the
performance  or  observance  by the  Borrower  of any of the terms,  conditions,
covenants or agreements contained in any Loan Document. The Administrative Agent
shall not be  responsible  to the Banks or the  holders of the Notes for the due
execution,  genuineness,  validity,  enforceability  or  effectiveness  of  this
Agreement,  the  Notes or any  other  Loan  Documents  or other  instruments  or
agreements. The Administrative Agent may deem and treat the payee of any Note as
the owner thereof for all purposes  hereof until it shall have received from the
payee of such Note notice,  given as provided herein,  of the transfer  thereof.
The  Administrative  Agent shall in all cases be fully  protected in acting,  or
refraining from acting,  in accordance with written  instructions  signed by the
Required  Banks or if required by the  provisions  of this  Agreement by all the
Banks, as applicable,  and, except as otherwise  specifically  provided  herein,
such  instructions and any action or inaction  pursuant thereto shall be binding
on all the Banks and each  subsequent  holder  of any Note.  The  Administrative
Agent shall, in the absence of knowledge to the contrary, be entitled to rely on
any  instrument  or  document  believed  by it in good faith to be  genuine  and
correct and to have been signed or sent by the proper Person or Persons. Neither
the Administrative Agent nor any of its directors, officers, employees or agents
shall have any  responsibility  to the  Borrower on account of the failure of or
delay in performance or breach by any Bank of any of its  obligations  hereunder
or to any Bank on account of the failure of or delay in performance or breach by
any other Bank or the Borrower of any of their respective  obligations hereunder
or under any other Loan  Document or in connection  herewith or  therewith.  The
Administrative  Agent may  execute  any and all duties  hereunder  by or through
agents or  employees  and  shall be  entitled  to rely upon the  advice of legal
counsel  selected by it with respect to all matters arising  hereunder and shall
not be liable for any action taken or suffered in good faith by it in accordance
with the advice of such counsel.

                                       43

     SECTION 8.3 ACTION BY  ADMINISTRATIVE  AGENT. The Banks hereby  acknowledge
that the  Administrative  Agent shall be under no duty to take any discretionary
action  permitted to be taken by it pursuant to the provisions of this Agreement
unless it shall be requested in writing to do so by the Required Banks.

     SECTION 8.4  RESIGNATION.  The  Administrative  Agent may not,  without the
consent of the Borrower,  resign at any time.  Upon receiving such consent,  and
subject to giving 30 days' prior written notice to the Banks, the Administrative
Agent may resign as Administrative  Agent hereunder.  Upon any such resignation,
the Required Banks, with the consent of the Borrower (which consent shall not be
unreasonably  withheld),  shall  have the  right  to  appoint  from the  Banks a
successor.  If no successor  shall have been so appointed by the Required  Banks
and shall have accepted such appointment within 30 days after the Administrative
Agent gives notice of its  resignation,  then the  Administrative  Agent may, on
behalf of the Banks,  appoint a successor  Administrative Agent which shall be a
bank with an office in Phoenix,  Arizona,  having a combined capital and surplus
of at least $50,000,000.00 or an Affiliate of any such bank. Upon the acceptance
of any appointment as  Administrative  Agent hereunder by a successor bank, such
successor  shall  succeed  to and become  vested  with all the  rights,  powers,
privileges  and duties of the retiring  Administrative  Agent and such  retiring
Administrative  Agent  shall be  discharged  from  its  duties  and  obligations
hereunder.   After  the  Administrative  Agent's  resignation   hereunder,   the
provisions  of this  Article and  Section  9.5 shall  continue in effect for its
benefit in respect  of any  actions  taken or omitted to be taken by it while it
was acting as an Administrative Agent.

     SECTION 8.5 AGENT AS BANK.  With  respect to the Loans made by it hereunder
and the Notes issued to it, the Administrative  Agent in its individual capacity
and not as an Administrative  Agent shall have the same rights and powers as any
other Bank and may  exercise  the same as though it were not the  Administrative
Agent, and the Administrative Agent and its Affiliates may accept deposits from,
lend money to and generally  engage in any kind of business with the Borrower or
any Subsidiary or other Affiliate  thereof as if it were not the  Administrative
Agent.

     SECTION 8.6  DETERMINATIONS.  Each Bank recognizes  that  applicable  laws,
rules,  regulations or guidelines of  Governmental  Authorities  may require the
Administrative  Agent to determine whether the transactions  contemplated hereby
should be classified as "highly  leveraged" or assigned any similar or successor
classification, and that such determination may be binding upon the other Banks.
Each Bank  understands that any such  determination  shall be made solely by the
Administrative  Agent  based  upon such  factors  (which  may  include,  without
limitation,  the Administrative  Agent's internal policies and prevailing market
practices) as the  Administrative  Agent shall deem relevant and agrees that the
Administrative  Agent shall have no liability for the  consequences  of any such
determination.

     SECTION  8.7  INDEMNIFICATION.  Each  Bank  agrees  (i)  to  reimburse  the
Administrative  Agent, on demand,  in the amount of its pro rata share (based on
its Commitment  hereunder) of any expenses incurred for the benefit of the Banks
by the Administrative  Agent,  including counsel fees and compensation of agents

                                       44

and employees paid for services rendered on behalf of the Banks, which shall not
have been reimbursed by the Borrower and (ii) to indemnify and hold harmless the
Administrative Agent and any of its directors, officers, employees or agents, on
demand,  in the  amount of such pro rata  share,  from and  against  any and all
liabilities, taxes, obligations, losses, damages, penalties, actions, judgments,
suits,  costs,  expenses or disbursements of any kind or nature whatsoever which
may be imposed on,  incurred by or  asserted  against it in its  capacity as the
Administrative  Agent or any of them in any way  relating  to or arising  out of
this  Agreement or any other Loan  Document or any action taken or omitted by it
or any of them under this  Agreement or any other Loan  Document,  to the extent
the same shall not have been reimbursed by the Borrower; PROVIDED that no Person
shall be liable to the Administrative Agent for any portion of such liabilities,
obligations,  losses,  damages,  penalties,  actions,  judgments,  suits, costs,
expenses  or  disbursements  resulting  from the  gross  negligence  or  willful
misconduct  of the  Administrative  Agent  or any  of its  directors,  officers,
employees or agents.

     SECTION 8.8 INDEPENDENT  CREDIT ANALYSIS.  Each Bank  acknowledges  that it
has,  independently  and without reliance upon the  Administrative  Agent or any
other  Bank  and  based  on such  documents  and  information  as it has  deemed
appropriate,  made its own  credit  analysis  and  decision  to enter  into this
Agreement.  Each Bank also acknowledges that it will,  independently and without
reliance  upon the  Administrative  Agent or any  other  Bank and  based on such
documents  and  information  as it shall  from  time to time  deem  appropriate,
continue to make its own decisions in taking or not taking action under or based
upon this  Agreement or any other Loan  Document,  any related  agreement or any
document furnished hereunder or thereunder.

                                       45

                                   ARTICLE IX
                                  MISCELLANEOUS

     SECTION 9.1 NOTICES.  Notices and other communications  provided for herein
shall be in writing and shall be delivered by hand or overnight courier service,
mailed or sent by telecopy, graphic scanning or other telegraphic communications
equipment of the sending party, as follows:

          (a) if to the  Borrower,  to it at 5601 West  Buckeye  Road,  Phoenix,
Arizona 85043, Attention: Chief Financial Officer;

          (b) if to the  Administrative  Agent,  to it at 100  West  Washington,
Phoenix, Arizona 85003, Attention: Arizona RCBO;

          (c) if to a Bank, to it at its address (or telecopy  number) set forth
in Schedule 2.1 or in the Assignment and Acceptance  pursuant to which such Bank
shall have become a party hereto.

All notices and other  communications  given to any party  hereto in  accordance
with the provisions of this Agreement  shall be deemed to have been given on the
date of receipt if  delivered by hand or  overnight  courier  service or sent by
telecopy or other telegraphic  communications equipment of the sender, or on the
date five  Business  Days after  dispatch by  certified  or  registered  mail if
mailed,  in each case  delivered,  sent or mailed  (properly  addressed) to such
party as provided in this  Section or in  accordance  with the latest  unrevoked
direction from such party given in accordance with this Section.

     SECTION   9.2   SURVIVAL   OF   AGREEMENT.   All   covenants,   agreements,
representations   and  warranties  made  by  the  Borrower  herein  and  in  the
certificates  or other  instruments  prepared or delivered in connection with or
pursuant to this  Agreement or any other Loan  Document  shall be  considered to
have been relied upon by the Banks and shall  survive the making by the Banks of
the Loans,  and the execution and delivery to the Banks of the Notes  evidencing
such  Loans,  regardless  of any  investigation  made by the  Banks  or on their
behalf,  and shall  continue  in full force and  effect  until  Termination  has
occurred.

     SECTION 9.3 BINDING EFFECT; BENEFICIARIES.

          (a) This  Agreement  shall  become  effective  when it shall have been
executed  by  the   Borrower   and  the   Administrative   Agent  and  when  the
Administrative  Agent  shall  have  received  copies  hereof  which,  when taken
together, bear the signatures of each Bank, and thereafter shall be binding upon
and inure to the benefit of the Borrower, the Administrative Agent and each Bank
and their respective successors and assigns.

          (b) This  Agreement is made and entered  into for the sole  protection
and benefit of the parties hereto and their respective  permitted successors and
assigns, and no other person or entity shall be a third party beneficiary of, or
have any direct or indirect  cause of action or claim in connection  with,  this
Agreement or any other of the Loan Documents to which it is not a party.

                                       46

          (c)  Time  is of the  essence  of each  and  every  provision  of this
Agreement and each other of the Loan Documents.

     SECTION 9.4 SUCCESSORS AND ASSIGNS.

          (a) Whenever in this  Agreement any of the parties  hereto is referred
to, such reference shall be deemed to include the successors and assigns of such
party;  and all  covenants,  promises  and  agreements  by or on  behalf  of the
Borrower,  the  Administrative  Agent or the Banks  that are  contained  in this
Agreement shall bind and inure to the benefit of their respective successors and
assigns.

          (b) Each Bank at its own expense  may assign to one or more  assignees
all or a portion of its interests,  rights and obligations  under this Agreement
(including all or a portion of its  Commitment,  and the Loans at the time owing
to it and the Notes held by it); PROVIDED,  HOWEVER, that (i) except in the case
of an assignment to a Bank or an Affiliate of any Bank, the Administrative Agent
and, so long as there is no Event of Default outstanding, the Borrower must give
their prior  written  consent to such  assignment  (which  consent  shall not be
unreasonably  withheld),  (ii) each such assignment shall be of a constant,  and
not a varying,  percentage  of all the assigning  Bank's rights and  obligations
under this Agreement,  (iii) except in the case of an assignment to a Bank or an
Affiliate  of any Bank,  the  amount of the  Commitment  of the  assigning  Bank
subject to each such  assignment  (determined  as of the date the Assignment and
Acceptance  with respect to such  assignment is delivered to the  Administrative
Agent) shall not be less than $5,000,000.00 or such lesser amount if such amount
is the entire  Commitment of the assigning  Bank,  (iv) the parties to each such
assignment shall execute and deliver to the  Administrative  Agent an Assignment
and Acceptance,  together with the Note or Notes subject to such assignment and,
except in the case of an  assignment  to a Bank or an  Affiliate  of any Bank, a
processing and recordation  fee of $3,500.00  (which fee shall not in any way be
the  responsibility  of the  Borrower),  (v) the assignee,  if it shall not be a
Bank, shall deliver to the Administrative Agent an Administrative  Details Reply
Form and (vi) any increased  costs by reason of any such  assignment will not be
borne by the Borrower.  Upon acceptance and recording  pursuant to paragraph (e)
of this  Section  9.4,  from and  after the  effective  date  specified  in each
Assignment and Acceptance,  which effective date shall be at least five Business
Days after the execution thereof,  (A) the assignee  thereunder shall be a party
hereto  and,  to the extent of the  interest  assigned  by such  Assignment  and
Acceptance,  have all the rights and  obligations of a Bank under this Agreement
and (B) the  assigning  Bank  thereunder  shall,  to the extent of the  interest
assigned by such  Assignment and  Acceptance,  be released from its  obligations
under this Agreement (and, in the case of an Assignment and Acceptance  covering
all or the remaining portion of an assigning Bank's rights and obligations under
this  Agreement,  such Bank shall cease to be a party hereto (but shall continue
to be entitled to the benefits of Sections 2.13,  2.15, 2.19 and 9.5, as well as
to any Fees accrued for its account hereunder and not yet paid)).

          (c) By executing  and  delivering an Assignment  and  Acceptance,  the
assigning Bank thereunder and the assignee thereunder shall be deemed to confirm
to and agree with each other and the other parties  hereto as follows:  (i) such
assigning  Bank  warrants  that it is the  legal  and  beneficial  owner  of the
interest being assigned thereby free and clear of any adverse claim and that its
Commitment and the outstanding  balances of its Loans,  without giving effect to

                                       47

assignments  thereof which have not become  effective,  are as set forth in such
Assignment and Acceptance, (ii) except as set forth in (i) above, such assigning
Bank makes no  representation  or warranty  and assumes no  responsibility  with
respect  to  any  statements,  warranties  or  representations  made  in  or  in
connection  with  this  Agreement,   or  the  execution,   legality,   validity,
enforceability,  genuineness,  sufficiency or value of this Agreement, any other
Loan Document or any other instrument or document  furnished  pursuant hereto or
the financial  condition of the Borrower or any Subsidiary or the performance or
observance  by the Borrower or any  Subsidiary of any of its  obligations  under
this  Agreement,  any other Loan  Document or any other  instrument  or document
furnished pursuant hereto;  (iii) such assignee  represents and warrants that it
is legally  authorized to enter into such Assignment and  Acceptance;  (iv) such
assignee  confirms that it has received a copy of this Agreement,  together with
copies of the most recent financial statements delivered pursuant to Section 5.4
and such other  documents and  information as it has deemed  appropriate to make
its own  credit  analysis  and  decision  to  enter  into  such  Assignment  and
Acceptance;  (v) such assignee will  independently and without reliance upon the
Administrative  Agent,  such  assigning Bank or any other Bank and based on such
documents and information as it shall deem appropriate at the time,  continue to
make its own  credit  decisions  in  taking  or not  taking  action  under  this
Agreement;  (vi) such assignee appoints and authorizes the Administrative  Agent
to take such  action as agent on its behalf and to exercise  such  powers  under
this Agreement as are delegated to the Administrative Agent by the terms hereof,
together with such powers as are reasonably  incidental thereto;  and (vii) such
assignee  agrees  that it will  perform in  accordance  with their terms all the
obligations which by the terms of this Agreement are required to be performed by
it as a Bank.

          (d) The  Administrative  Agent shall maintain at one of its offices in
Phoenix, Arizona, a copy of each Assignment and Acceptance delivered to it and a
register for the  recordation  of the names and addresses of the Banks,  and the
Commitment of, and principal amount of the Loans owing to, each Bank pursuant to
the terms hereof from time to time (the "Register"). The entries in the Register
shall be  conclusive  in the absence of  manifest  error and the  Borrower,  the
Administrative  Agent and the Banks may treat each Person whose name is recorded
in the  Register  pursuant  to the  terms  hereof  as a Bank  hereunder  for all
purposes of this  Agreement.  The Register  shall be available for inspection by
the Borrower  and any Bank,  at any  reasonable  time and from time to time upon
reasonable prior notice.

          (e) Upon its receipt of a duly  completed  Assignment  and  Acceptance
executed by an assigning  Bank and an assignee  together  with the Note or Notes
subject to such assignment,  an  Administrative  Details Reply Form completed in
respect of the assignee (unless the assignee shall already be a Bank hereunder),
the  processing and  recordation  fee referred to in paragraph (b) above and, if
required,  the written consent of the Borrower and the  Administrative  Agent to
such assignment,  the Administrative  Agent shall (i) accept such Assignment and
Acceptance,  (ii) record the information  contained  therein in the Register and
(iii) give prompt  notice  thereof to the  Borrower  and the Banks.  Within five
Business Days after receipt of notice, the Borrower,  at its own expense,  shall
execute and deliver to the Administrative Agent, in exchange for the surrendered
Note or  Notes,  a new Note or Notes to the  order of such  assigning  Bank in a
principal  amount equal to the  applicable  Commitment  retained by it. Such new
Note or Notes shall be in an aggregate  principal  amount equal to the aggregate
principal  amount of such  surrendered  Note or Notes;  such new Notes  shall be
dated the date of the  surrendered  Notes which they replace and shall otherwise
be in  substantially  the form of Exhibit C. Canceled Notes shall be returned to
the Borrower.

                                       48

          (f)  Each  Bank  may  without  the  consent  of  the  Borrower  or the
Administrative  Agent sell participations to one or more banks or other entities
in  all  or a  portion  of its  rights  and  obligations  under  this  Agreement
(including  all or a portion of its Commitment and the Loans owing to it and the
Notes held by it);  PROVIDED,  HOWEVER,  that (i) such Bank's  obligations under
this  Agreement  shall  remain  unchanged,  (ii) such Bank shall  remain  solely
responsible to the other parties hereto for the performance of such obligations,
(iii) the participating banks or other entities shall be entitled to the benefit
of the cost protection  provisions  contained in Sections 2.13, 2.15 and 2.19 to
the same extent as if they were Banks (however no  participating  bank or entity
shall be entitled to claim a greater  amount than could have been claimed by the
Bank  from whom the  participation  was  acquired)  and (iv) the  Borrower,  the
Administrative  Agent and the other  Banks  shall  continue  to deal  solely and
directly  with such Bank in connection  with such Bank's rights and  obligations
under this  Agreement,  and such Bank shall retain the sole right to enforce the
obligations of the Borrower  relating to the Loans and to approve any amendment,
modification or waiver of any provision of this Agreement. No entity acquiring a
participation   pursuant  to  this   paragraph  (f)  shall  by  virtue  of  such
participation have any direct voting rights under this Agreement.

          (g) Any Bank or participant  may, in connection with any assignment or
participation or proposed  assignment or participation  pursuant to this Section
9.4, disclose to the assignee or participant or proposed assignee or participant
any information  relating to the Borrower furnished to such Bank by or on behalf
of  the  Borrower;   PROVIDED  that,  prior  to  any  such  disclosure  of  such
information,   each  such  assignee  or  participant  or  proposed  assignee  or
participant  shall  execute an agreement  whereby such  assignee or  participant
shall agree to preserve the confidentiality of such information on terms no less
restrictive than those applicable to Banks pursuant to Section 9.17.

          (h) Any Bank may at any time  assign all or any  portion of its rights
under  this  Agreement  and the Notes  issued to it to a Federal  Reserve  Bank;
PROVIDED  that  no  such  assignment  shall  release  a  Bank  from  any  of its
obligations hereunder.

          (i) The  Borrower  shall not assign or  delegate  any of its rights or
duties hereunder without the prior written consent of the Banks.

     SECTION 9.5 EXPENSES; INDEMNITY.

          (a) The Borrower agrees to pay all out-of-pocket  expenses  reasonably
incurred by the Administrative  Agent in connection with the preparation of this
Agreement  and the other Loan  Documents or in connection  with any  amendments,
modifications or waivers of the provisions hereof or thereof (whether or not the
transactions hereby contemplated shall be consummated) or reasonably incurred by
the Administrative Agent in connection with the enforcement or protection of the
rights  of the  Banks in  connection  with this  Agreement  and the  other  Loan
Documents or in  connection  with the Loans made or the Notes issued  hereunder,
including without  limitation the reasonable fees,  charges and disbursements of
the counsel for the  Administrative  Agent,  and,  in  connection  with any such
enforcement or protection,  the reasonable  fees,  charges and  disbursements of

                                       49

counsel for the Administrative  Agent. The Borrower further agrees that it shall
indemnify  the  Administrative  Agent and any Bank  from and hold them  harmless
against any documentary  taxes,  assessments or charges made by any Governmental
Authority by reason of the  execution  and delivery of this  Agreement or any of
the other Loan Documents.

          (b) The Borrower agrees to indemnify the  Administrative  Agent,  each
Bank and each of their respective affiliates, directors, officers, employees and
agents (each such person being called an "Indemnitee") against, and to hold each
Indemnitee harmless from, any and all losses, claims,  damages,  liabilities and
related expenses,  including without limitation reasonable counsel fees, charges
and  disbursements,  incurred by or asserted against any Indemnitee  arising out
of, in any way  connected  with, or as a result of (i) the execution or delivery
of this  Agreement or any other Loan  Document or any  agreement  or  instrument
contemplated thereby, the performance by the parties thereto of their respective
obligations  thereunder or the  consummation  of the  transactions  contemplated
thereby,  (ii) the use of the  proceeds of the Loans  pursuant to the request of
the  Borrower  or (iii)  any  claim,  litigation,  investigation  or  proceeding
relating  to any of the  foregoing,  whether  or not any  Indemnitee  is a party
thereto;  PROVIDED  that such  indemnity  shall not,  as to any  Indemnitee,  be
available  to the extent  that such  losses,  claims,  damages,  liabilities  or
related  expenses are determined by a court of competent  jurisdiction  by final
and nonappealable judgment to have resulted from the gross negligence or willful
misconduct of such Indemnitee.

          (c) The provisions of this Section shall remain  operative and in full
force and effect regardless of the expiration of the term of this Agreement, the
consummation of the transactions  contemplated  hereby,  the repayment of any of
the Loans, the invalidity or  unenforceability  of any term or provision of this
Agreement or any other Loan Document,  or any investigation made by or on behalf
of the  Administrative  Agent and any Bank.  All amounts due under this  Section
shall be payable on written demand therefor.

     SECTION 9.6 RIGHT OF SETOFF.  Subject to the provisions of Section 2.17, if
an Event of Default  shall have  occurred and be  continuing  and any Bank shall
have requested the Administrative Agent to declare the Loans immediately due and
payable pursuant to Article VII, each Bank is hereby  authorized at any time and
from time to time, to the fullest extent  permitted by law, to set off and apply
any and all deposits (general or special, time or demand,  provisional or final)
at any time held and other indebtedness at any time owing by such Bank to or for
the credit or the account of the Borrower against any of and all the obligations
of the Borrower now or hereafter  existing  under this  Agreement  and any other
Loan Documents held by such Bank, irrespective of whether or not such Bank shall
have made any demand  under this  Agreement  or such  other  Loan  Document  and
although such  obligations may be unmatured;  PROVIDED that such right of setoff
shall not apply to amounts which may be held in (i) trust accounts or (ii) asset
management  accounts,  including without  limitation  brokerage  accounts,  cash
management  accounts  or other  money  management  or  investment  accounts of a
non-depository  nature with any Bank. The rights of each Bank under this Section
are in addition to other rights and remedies  (including other rights of setoff)
which such Bank may have.

                                       50

     SECTION 9.7  APPLICABLE  LAW. THIS  AGREEMENT AND THE OTHER LOAN  DOCUMENTS
SHALL BE CONSTRUED IN  ACCORDANCE  WITH AND GOVERNED BY THE LAWS OF THE STATE OF
ARIZONA  APPLICABLE TO CONTRACTS  MADE AND TO BE ENFORCED  ENTIRELY  WITHIN THAT
STATE.

     SECTION 9.8 WAIVERS; AMENDMENT.

          (a) No failure or delay of a party hereto in  exercising  any power or
right  hereunder  shall  operate  as a waiver  thereof,  nor shall any single or
partial   exercise  of  any  such  right  or  power,   or  any   abandonment  or
discontinuance of steps to enforce such a right or power,  preclude any other or
further exercise thereof or the exercise of any other right or power. The rights
and remedies of the parties  hereunder  and under the other Loan  Documents  are
cumulative  and are not  exclusive  of any rights or  remedies  which they would
otherwise  have. No waiver of any provision of this  Agreement or any other Loan
Document or consent to any departure by a party  therefrom shall in any event be
effective  unless the same shall be permitted  by Paragraph  (b) of this Section
and then such waiver or consent shall be effective only in the specific instance
and for the purpose for which given.  No notice or demand on a party in any case
shall entitle that party to any other or further  notice or demand in similar or
other circumstances.

          (b) Neither this  Agreement  nor any  provision  hereof may be waived,
amended or modified  except  pursuant to an agreement or  agreements  in writing
entered into by the Borrower and the Required Banks; PROVIDED,  HOWEVER, that no
such  agreement  shall (i)  decrease  the  principal  amount  of, or extend  the
maturity of or any scheduled  principal  payment date or date for the payment of
any  interest  on any Loan,  or waive or  excuse  any such  payment  or any part
thereof, or decrease the rate of interest on any Loan, without the prior written
consent of each  holder of a Note  affected  thereby,  (ii) change or extend the
Commitment or decrease the Commitment Fees of any Bank without the prior written
consent of such Bank, or (iii) amend or modify the  provisions of Sections 2.13,
2.14,  2.16, 2.19, 2.21, 5.11, 9.5 or 9.6, the provisions of this Section or the
definition of "Required Banks",  without the prior written consent of each Bank;
PROVIDED FURTHER that no such agreement shall amend,  modify or otherwise affect
the rights or duties of the  Administrative  Agent  hereunder  without the prior
written consent of the Administrative Agent. Each Bank and each holder of a Note
shall be bound by any  waiver,  amendment  or  modification  authorized  by this
Section  regardless of whether its Note shall have been marked to make reference
thereto,  and any  consent  by any Bank or  holder  of a Note  pursuant  to this
Section shall bind any Person subsequently  acquiring a Note from it, whether or
not such Note shall have been so marked.

     SECTION 9.9 INTEREST RATE LIMITATION. Notwithstanding anything herein or in
the Notes to the contrary, if at any time the applicable interest rate, together
with all fees and charges  which are treated as interest  under  applicable  law
(collectively,  the "Charges"),  as provided for herein or in any other document
executed in connection herewith, or otherwise contracted for, charged, received,
taken or  reserved  by any Bank,  shall  exceed  the  maximum  lawful  rate (the
"Maximum  Rate")  which may be  contracted  for,  charged,  taken,  received  or
reserved by such Bank in accordance  with  applicable  law, the rate of interest
payable under the Notes held by such Bank,  together with all Charges payable to
such Bank,  shall be limited to the Maximum Rate.  Borrower hereby agrees to the
payment of interest with respect to the Loans and Borrowings  under the Loans at
the respective  applicable rates determined pursuant to this Agreement,  in each

                                       51

case as  increased  by any rate of  interest  resulting  from any charges in the
nature of  interest  paid or payable  in  connection  with the Loans,  the Notes
and/or this Agreement.

     SECTION 9.10 ENTIRE AGREEMENT.  This Agreement and the other Loan Documents
constitute  the entire  contract  between  the  parties  relating to the subject
matter hereof.  Any previous  agreement among any of the parties with respect to
the subject  matter hereof is  superseded  by this  Agreement and the other Loan
Documents.  Nothing in this Agreement or in the other Loan Documents,  expressed
or implied,  is intended to confer upon any party other than the parties  hereto
and thereto any rights, remedies,  obligations or liabilities under or by reason
of this Agreement or the other Loan Documents.

     SECTION 9.11  SEVERABILITY.  In the event any one or more of the provisions
contained  in this  Agreement  or in any  other  Loan  Document  should  be held
invalid,  illegal or  unenforceable in any respect,  the validity,  legality and
enforceability  of the remaining  provisions  contained herein and therein shall
not in any way be affected or impaired  thereby.  The parties shall  endeavor in
good-faith  negotiations  to  replace  the  invalid,  illegal  or  unenforceable
provisions with valid  provisions the economic effect of which comes as close as
possible to that of the invalid, illegal or unenforceable provisions.

     SECTION 9.12  COUNTERPARTS  AND  SIGNATURE  PAGES.  This  Agreement  may be
executed in two or more counterparts, each of which shall constitute an original
but all of which when taken together shall constitute but one contract. Delivery
of an executed  counterpart  of a signature  page to this Agreement by facsimile
transmission  shall be effective as delivery of a manually executed  counterpart
of this  Agreement.  All parties hereto  authorize the  Administrative  Agent to
gather and attach manually executed  counterpart  signature pages to counterpart
copies of this Agreement in order to constitute one or more counterparts bearing
evidence of manual execution by all parties.

     SECTION  9.13  HEADINGS.  Article  and  Section  headings  and the Table of
Contents used herein are for convenience of reference only, are not part of this
Agreement  and are not to  affect  the  construction  of,  or to be  taken  into
consideration in interpreting, this Agreement.

     SECTION 9.14 ARBITRATION.

          (a) ARBITRATION.  The parties hereto agree,  upon demand by any party,
to submit to binding arbitration all claims,  disputes and controversies between
or among them (and their respective employees,  officers, directors,  attorneys,
and other  agents),  whether in tort,  contract or  otherwise  arising out of or
relating to in any way (i) the loan and  related  Loan  Documents  which are the
subject of this  Agreement and its  negotiation,  execution,  collateralization,
administration,  repayment, modification,  extension,  substitution,  formation,
inducement, enforcement, default or termination; or (ii) requests for additional
credit.

                                       52

          (b) GOVERNING RULES. Any arbitration  proceeding will (i) proceed in a
location in Phoenix,  Arizona selected by the American  Arbitration  Association
("AAA");  (ii) be governed by the Federal Arbitration Act (Title 9 of the United
States Code),  notwithstanding any conflicting choice of law provision in any of
the  documents  between the parties;  and (iii) be conducted by the AAA, or such
other administrator as the parties shall mutually agree upon, in accordance with
the  AAA's  commercial  dispute  resolution  procedures,  unless  the  claim  or
counterclaim  is  at  least   $1,000,000.00   exclusive  of  claimed   interest,
arbitration  fees and costs in which case the arbitration  shall be conducted in
accordance  with the AAA's  optional  procedures for large,  complex  commercial
disputes  (the  commercial  dispute   resolution   procedures  or  the  optional
procedures  for  large,  complex  commercial  disputes  to be  referred  to,  as
applicable,  as the "Rules").  If there is any  inconsistency  between the terms
hereof and the Rules,  the terms and  procedures set forth herein shall control.
Any party who fails or refuses to submit to  arbitration  following  a demand by
any other party shall bear all costs and  expenses  incurred by such other party
in compelling  arbitration  of any dispute.  Nothing  contained  herein shall be
deemed to be a waiver by any party that is a bank of the protections afforded to
it under 12 U.S.C. ss.91 or any similar applicable state law.

          (c) NO WAIVER OF PROVISIONAL REMEDIES,  SELF-HELP AND FORECLOSURE. The
arbitration  requirement  does not limit the right of any party to (i) foreclose
against personal property collateral;  (ii) exercise self-help remedies relating
to collateral or proceeds of collateral such as setoff or repossession; or (iii)
obtain  provisional or ancillary  remedies such as replevin,  injunctive relief,
attachment or the appointment of a receiver, before during or after the pendency
of any  arbitration  proceeding.  This exclusion does not constitute a waiver of
the right or  obligation  of any party to submit any dispute to  arbitration  or
reference  hereunder,  including  those arising from the exercise of the actions
detailed in sections (i), (ii) and (iii) of this paragraph.

          (d) ARBITRATOR  QUALIFICATIONS AND POWERS. Any arbitration  proceeding
in which the amount in controversy is $5,000,000.00 or less will be decided by a
single arbitrator  selected  according to the Rules, and who shall not render an
award of  greater  than  $5,000,000.00.  Any  dispute  in which  the  amount  in
controversy  exceeds  $5,000,000.00 shall be decided by majority vote of a panel
of three arbitrators selected according to the Rules;  PROVIDED,  HOWEVER,  that
all  three   arbitrators   must  actively   participate   in  all  hearings  and
deliberations.  Each arbitrator will be a neutral attorney licensed in the State
of  Arizona or a neutral  retired  judge of the state or  federal  judiciary  of
Arizona,  in  either  case  with  a  minimum  of  ten  years  experience  in the
substantive  law  applicable  to  the  subject  matter  of  the  dispute  to  be
arbitrated.   The  arbitrator  will  determine   whether  or  not  an  issue  is
arbitratable  and will give effect to the statutes of limitation in  determining
any  claim.  In any  arbitration  proceeding  the  arbitrator  will  decide  (by
documents only or with a hearing at the arbitrator's discretion) any pre-hearing
motions  which are similar to motions to dismiss for failure to state a claim or
motions for summary  adjudication.  The arbitrator shall resolve all disputes in
accordance  with the  substantive  law of  Arizona  and may grant any  remedy or
relief that a court of such state could order or grant  within the scope  hereof
and such  ancillary  relief as is necessary  to make  effective  any award.  The
arbitrator shall also have the power to award recovery of all costs and fees, to
impose sanctions and to take such other action as the arbitrator deems necessary
to the  same  extent  a judge  could  pursuant  to the  Federal  Rules  of Civil
Procedure,  the  Arizona  Rules of Civil  Procedure  or  other  applicable  law.
Judgment upon the award  rendered by the  arbitrator may be entered in any court

                                       53

having  jurisdiction.  The institution and maintenance of an action for judicial
relief or pursuit of a provisional  or ancillary  remedy shall not  constitute a
waiver  of the right of any  party,  including  the  plaintiff,  to  submit  the
controversy  or claim to arbitration if any other party contests such action for
judicial relief.

          (e)  DISCOVERY.  In  any  arbitration  proceeding  discovery  will  be
permitted in accordance with the Rules. All discovery shall be expressly limited
to  matters  directly  relevant  to the  dispute  being  arbitrated  and must be
completed  no later than 20 days before the hearing  date and within 180 days of
the filing of the dispute  with the AAA.  Any  requests  for an extension of the
discovery  periods,  or  any  discovery  disputes,  will  be  subject  to  final
determination by the arbitrator upon a showing that the request for discovery is
essential  for the  party's  presentation  and  that no  alternative  means  for
obtaining information is available.

          (f)  CLASS  PROCEEDINGS  AND  CONSOLIDATIONS.  The  resolution  of any
dispute arising pursuant to the terms of this Agreement shall be determined by a
separate arbitration  proceeding and such dispute shall not be consolidated with
other disputes or included in any class proceeding.

          (g) PAYMENT OF ARBITRATION  COSTS AND FEES. The arbitrator shall award
all costs and expenses of the arbitration proceeding.

          (h)  MISCELLANEOUS.  To the maximum extent  practicable,  the AAA, the
arbitrators  and the parties  shall take all action  required  to  conclude  any
arbitration  proceeding  within 180 days of the filing of the  dispute  with the
AAA. No arbitrator or other party to an arbitration  proceeding may disclose the
existence,  content or results thereof, except for disclosures of information by
a party required in the ordinary  course of its business or by applicable law or
regulation. If more than one agreement for arbitration by or between the parties
potentially  applies to a  dispute,  the  arbitration  provision  most  directly
related  to the Loan  Documents  or the  subject  matter  of the  dispute  shall
control.  This  arbitration  provision shall survive  termination,  amendment or
expiration of any of the Loan Documents or any relationship between the parties.

     SECTION 9.15 JURISDICTION; CONSENT TO SERVICE OF PROCESS.

          (a) Each of the parties hereto hereby irrevocably and  unconditionally
submits,  for itself  and its  property,  to the  nonexclusive  jurisdiction  of
Arizona State court or Federal court of the United States of America  sitting in
Phoenix,  Arizona,  and any appellate  court from any thereof,  in any action or
proceeding  arising  out of or  relating  to this  Agreement  or the other  Loan
Documents,  or for  recognition or enforcement of any judgment,  and each of the
parties hereto hereby irrevocably and unconditionally  agrees that all claims in
respect of any such action or  proceeding  may be heard and  determined  in such
Arizona State or, to the extent permitted by law, in such Federal court. Each of
the parties hereto agrees that a final judgment in any such action or proceeding
shall be conclusive  and may be enforced in other  jurisdictions  by suit on the
judgment or in any other manner provided by law. Nothing in this Agreement shall
affect  any  right  that any Bank may  otherwise  have to bring  any  action  or
proceeding  relating to this Agreement or the other Loan  Documents  against the
Borrower or its properties in the courts of any jurisdiction.

                                       54

          (b) Each of the parties hereto hereby irrevocably and  unconditionally
waives,  to the  fullest  extent  it may  legally  and  effectively  do so,  any
objection which it may now or hereafter have to the laying of venue of any suit,
action or proceeding  arising out of or relating to this  Agreement or the other
Loan  Documents  in any  Arizona  State or Federal  court  sitting  in  Phoenix,
Arizona.  Each of the parties hereto hereby  irrevocably  waives, to the fullest
extent permitted by law, the defense of an inconvenient forum to the maintenance
of such action or proceeding in any such court.

          (c) Each party to this  Agreement  irrevocably  consents to service of
process in the manner  provided  for  notices  in Section  9.1.  Nothing in this
Agreement  will affect the right of any party to this Agreement to serve process
in any other manner permitted by law.

     SECTION 9.16 WAIVER OF JURY TRIAL.  Each party hereto hereby waives, to the
fullest extent  permitted by applicable law, any right it may have to a trial by
jury in respect of any litigation  directly or indirectly  arising out of, under
or in connection  with this Agreement or any of the other Loan  Documents.  Each
party  hereto (a)  certifies  that no  representative,  agent or attorney of any
other party has represented, expressly or otherwise, that such other party would
not, in the event of  litigation,  seek to enforce the foregoing  waiver and (b)
acknowledges  that it and the other  parties  hereto have been  induced to enter
into this Agreement and the other Loan Documents, as applicable, by (among other
things) the mutual waivers and certifications in this Section.

     SECTION 9.17 NON-DEBTOR BORROWER PROVISIONS.

          (a) All advances of principal  hereunder  shall be made to the Company
subject to and in accordance with the terms hereof.  It is not necessary for the
Banks to  inquire  into the  powers  of  Borrower  or the  officers,  directors,
partners or agents acting or purporting to act on its behalf.  Each  Co-Borrower
is and shall  continue to be fully  informed  as to all aspects of the  business
affairs of the Company  that it deems  relevant to the risks it is assuming  and
hereby waives and fully  discharges  the Banks from any and all  obligations  to
communicate to the Co-Borrower any facts of any nature whatsoever  regarding the
Company and the Company's business affairs.

          (b) Each Co-Borrower  authorizes the Banks,  without notice or demand,
without  affecting the obligations of the Co-Borrower  hereunder or the personal
liability of any person for payment or performance of the obligations  hereunder
and without affecting the lien or the priority of the Security  Documents,  from
time to time,  at the request of any person  primarily  obligated  therefor,  to
renew, compromise,  extend,  accelerate or otherwise change the time for payment
or  performance  of, or  otherwise  change  the terms of, all or any part of the
obligations  hereunder,  including  increase  or  decrease  any rate of interest
thereon.  Each  Co-Borrower  waives and  agrees not to assert:  (i) any right to
require  the Banks to proceed  against  the  Company;  (ii) the  benefits of any
statutory  provision  limiting  the  liability  of a surety,  including  without
limitation  the benefit of Section  12-1641,  ET SEQ.,  of the  Arizona  Revised
Statutes;  and (iii) any defense  arising by reason of any  disability  or other
defense of the Company or by reason of the cessation  from any cause  whatsoever
of the  liability  of the  Company.  The  Co-Borrower  shall  have no  right  of
subrogation  and hereby  waives any right to enforce any remedy  which the Banks
now have, or may hereafter have, against the Company.

                                       55

     SECTION 9.18 CONFIDENTIALITY. Each Bank agrees to keep confidential (and to
cause its officers,  directors,  employees,  agents and  representatives to keep
confidential) the Information (as defined below),  except that any Bank shall be
permitted  to  disclose  Information  (i) to  such of its  officers,  directors,
employees,  agents and  representatives  (including  outside counsel) as need to
know such  Information;  (ii) to the  extent  required  by  applicable  laws and
regulations  or by any subpoena or similar  legal  process,  or requested by any
bank regulatory authority (provided that such Bank shall, except for Information
requested by any such bank  regulatory  authority,  promptly notify Borrower (to
the extent practicable and lawful,  notice shall be given to the Borrower before
such disclosure is made so as to permit Borrower to seek a protective  order) of
the  circumstances  and  content  of each  such  disclosure  and  shall  request
confidential  treatment of any  Information so  disclosed);  (iii) to the extent
such  Information  (A) becomes  publicly  available  other than as a result of a
breach  of  this   Agreement,   (B)  becomes   available   to  such  Bank  on  a
non-confidential  basis from a source other than the Borrower or its  Affiliates
or (C) was  available  to such  Bank on a  non-confidential  basis  prior to its
disclosure to such Bank by the Borrower or its Affiliates; or (iv) to the extent
the Borrower shall have consented to such disclosure in writing. As used in this
Section 9.18, as to any Bank, "Information" shall mean any financial statements,
materials,  documents  and other  information  that the  Borrower  or any of its
Affiliates  may  have  furnished  or may  hereafter  furnish  to  such  Bank  in
connection  with this  Agreement  or any other  materials  prepared  by any such
person from any of the foregoing.

                                       56

     IN WITNESS WHEREOF,  the Borrower,  the Administrative  Agent and the Banks
have caused this  Agreement to be duly executed by their  respective  authorized
officers as of the day and year first above written.


                                        KNIGHT TRANSPORTATION, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------


                                        QUAD-K LEASING, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                                      "Borrower"


                                        WELLS FARGO BANK, NATIONAL ASSOCIATION


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                         "Administrative Agent and Issuing Bank"

                                       57

                                        WELLS FARGO BANK, NATIONAL ASSOCIATION


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                                          "Bank"


                                        THE NORTHERN TRUST COMPANY, an Illinois
                                        banking corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                                          "Bank"

                                       58

                                   EXHIBIT "A"

                        FORM OF ASSIGNMENT AND ACCEPTANCE


                              ______________, 20___


     Reference  is made to the Credit  Agreement  dated as of April 6, 2001 (the
"Credit Agreement"), among KNIGHT TRANSPORTATION,  INC., an Arizona corporation,
and its Significant  Subsidiaries  (collectively,  the "Borrower"),  the lenders
named  therein  (the  "Banks"),  WELLS  FARGO  BANK,  NATIONAL  ASSOCIATION,  as
Administrative  Agent  for the  Banks  (in such  capacity,  the  "Administrative
Agent") and as Swing Line Lender,  and THE NORTHERN TRUST  COMPANY,  an Illinois
banking  corporation,  as a Bank.  Terms defined in the Credit Agreement and not
otherwise  defined herein shall have the meanings  assigned to such terms in the
Credit Agreement.

     1.  The  Assignor  hereby  sells  and  assigns,  without  recourse,  to the
Assignee, and the Assignee hereby purchases and assumes,  without recourse, from
the  Assignor,  effective  as of the  Effective  Date set  forth on the  reverse
hereof, the interests set forth on the reverse hereof (the "Assigned  Interest")
in the Assignor's rights and obligations under the Credit Agreement,  including,
without  limitation,  the  interests  set  forth on the  reverse  hereof  in the
Commitment  of the  Assignor  on the  Effective  Date and the Loans owing to the
Assignor  which are  outstanding  on the  Effective  Date,  together with unpaid
interest accrued on the assigned Loans to the Effective Date and the amount,  if
any, set forth on the reverse  hereof of the Fees accrued to the Effective  Date
for the account of the  Assignor.  Each of the Assignor and the Assignee  hereby
makes  and  agrees  to be  bound  by all  the  representations,  warranties  and
agreements set forth in Section 9.4(c) of the Credit Agreement,  a copy of which
has been received by each such party.  From and after the Effective Date (i) the
Assignee  shall  be a party  to and be bound  by the  provisions  of the  Credit
Agreement  and, to the extent of the interests  assigned by this  Assignment and
Acceptance,  have the rights and  obligations of a Bank thereunder and under the
Loan  Documents  and (ii) the  Assignor  shall,  to the extent of the  interests
assigned  by this  Assignment  and  Acceptance,  relinquish  its  rights  and be
released from its obligations under the Credit Agreement.

     2. This Assignment and Acceptance is being delivered to the  Administrative
Agent together with (i) the Notes  evidencing the Loans included in the Assigned
Interest,  (ii) the appropriate forms specified in Section 2.19(e) of the Credit
Agreement,  duly completed and executed by such Assignee,  (iii) if the Assignee
is not  already a Bank under the Credit  Agreement,  an  Administrative  Details
Reply  Form in the  form of  Exhibit  "D" to the  Credit  Agreement  and  (iv) a
processing fee of $2,500.00.

     3. This  Assignment  and  Acceptance  shall be governed by and construed in
accordance with the laws of the State of Arizona.

Date of Assignment:

Legal Name of Assignor:

Legal Name of Assignee:

Assignee's Address for Notice:

Effective Date of Assignment
(may not be fewer than 5 Business
Days after the Date of Assignment):

                                            Percentage Assigned of Facility/
                                            Commitment (set forth, to at least
                                            8 decimals, as a percentage of the
                                            Facility and the aggregate
Facility        Principal Amount Assigned   Commitments of all Banks thereunder)


Commitment      $________________           ______________%
Assigned:

Loans:

Fees Assigned
(if any):

The terms set forth above and on the
reverse side hereof are hereby agreed to: Accepted


__________________, as Assignor         ________________________________________


By __________________________           By _____________________________________

   Its ______________________              Its _________________________________


________________, as Assignor           ________________________________________


By __________________________           By _____________________________________

   Its_______________________              Its _________________________________

                                        2

                                   EXHIBIT "B"

                            FORM OF BORROWING NOTICE


WELLS FARGO BANK, NATIONAL ASSOCIATION
as Administrative Agent for the Banks
100 West Washington
Phoenix, Arizona  85003

Attention: Arizona RCBO                                      Date:______________
                                                             Time:______________

Dear Sir:

     The  undersigned,  KNIGHT  TRANSPORTATION,  INC.,  an  Arizona  corporation
(together with its Significant Subsidiaries,  "Borrower"),  refers to the Credit
Agreement  dated as of April 6, 2001 (as it may hereafter be amended,  modified,
extended or restated from time to time, the "Credit Agreement"), among Borrower,
the  Banks  named   therein,   WELLS  FARGO  BANK,   NATIONAL   ASSOCIATION   as
Administrative  Agent for the Banks and as Swing Line  Lender,  and THE NORTHERN
TRUST COMPANY,  an Illinois banking  corporation,  as a Bank.  Capitalized terms
used herein and not otherwise defined herein shall have the meanings assigned to
such terms in the Credit  Agreement.  The  Borrower  hereby gives notice that it
requests a Borrowing  pursuant to Section 2.3 of the Credit  Agreement  and sets
forth below the terms of such requested Borrowing:

     A.   Type of Borrowing(1)                         ____________________

     B.   Advance date of Borrowing                    ____________________

     C.   Principal Amount of Borrowing(2)             ____________________

     D.   LIBOR Borrowing Interest
          Period and last day thereof(3)               ____________________


- ----------
(1)  LIBOR Borrowing or Base Rate Borrowing or Swing Line Loan.
(2)  Each LIBOR  Borrowing  under the RLC Facility  shall be a principal  amount
     which  is  an  integral   multiple  of   $100,000.00   and  not  less  than
     $1,000,000.00.
(3)  Which shall be subject to the  definition of "Interest  Period" and end not
     later than the RLC Maturity Date.

     E.   Reborrowing Election (Identity
          of Borrowing to be reborrowed)(4)
               Date                                    ____________________
               Type                                    ____________________
               Amount                                  ____________________
               Last Interest Period                    ____________________
               Included in the Swap Amount (or not)    ____________________

     Upon  acceptance  of the  Borrowing  to be made by the Banks in response to
this request,  Borrower shall be deemed to have represented and warranted to the
Banks that, as of the date of such Credit  Event,  the  conditions  specified in
Section 4.1 of the Credit Agreement are satisfied.

                                        Sincerely,

                                        KNIGHT TRANSPORTATION, INC., an Arizona
                                        corporation


                                        By
                                           -------------------------------------
                                           Its
                                               ---------------------------------
                                               An officer of Borrower duly
                                               authorized to request Borrowings
                                               under the Credit Agreement

- ----------
(4)  Identity shall include the date and amount of Borrowing, the Type and, with
     respect  to LIBOR  Borrowings,  the date of the last  Interest  Period  and
     whether to be included in the Swap Amount.

                                        2

                                   EXHIBIT "C"

                              REVOLVING CREDIT NOTE
                                 (RLC Facility)


$_____________                                                     April 6, 2001
                                                                Phoenix, Arizona


     FOR  VALUE  RECEIVED,  the  undersigned  (hereinafter  collectively  called
"Maker"),     hereby     promises     to     pay     to     the     order     of
____________________________________________  (the  "Bank"),  at the  office  of
WELLS FARGO BANK, NATIONAL ASSOCIATION (the "Administrative Agent"), at 100 West
Washington,  Phoenix,  Arizona  85003  (Attention:  Arizona  RCBO) in Dollars in
immediately   available   funds,   the   principal   sum  of   _________________
__________________________________  AND ____/100 DOLLARS ($_________________) or
the aggregate  unpaid  principal amount of all Borrowings of the Revolving Loans
(as such terms and each other  capitalized  term used  herein are defined in the
Credit  Agreement  hereinafter  referred  to) made by the Bank  pursuant  to the
Credit Agreement,  whichever is less, and to pay interest in like funds from the
date hereof on the unpaid balance thereof at the rates of interest per annum and
at the times specified in the Credit Agreement.

     Principal hereof shall be payable in the amounts and at the times set forth
in the Credit Agreement.

     Maker agrees to an effective rate of interest that is the rate stated above
plus any  additional  rate of interest  resulting  from any other charges in the
nature of interest  paid or to be paid by or on behalf of Maker,  or any benefit
received or to be received by the Bank, in connection with this Note.

     This Note is one of the revolving  credit notes  referred to in Section 2.7
of the Credit  Agreement dated as of April 6, 2001 by and among Maker, the Banks
named  therein,  the  Administrative  Agent  and as Swing  Line  Lender  and The
Northern Trust Company, an Illinois banking corporation,  as a Bank (as the same
may be amended, modified or restated from time to time, the "Credit Agreement").
All of the terms, conditions and covenants of the Credit Agreement are expressly
made a part of this  Note by  reference  in the  same  manner  and with the same
effect as if set forth herein at length and Bank or any  transferee of this Note
(sequentially,  the  "Holder")  is  entitled  to the  benefits  of and  remedies
provided in the Credit  Agreement and any other  agreements by and between Maker
and Bank. Reference is made to the Credit Agreement for provisions regarding the
maturity,  payment,  prepayment and acceleration of the  indebtedness  evidenced
hereby.

     After maturity, including maturity upon acceleration, all unpaid amounts of
this Note shall bear  interest  at the  Default  Rate.  Maker  agrees to pay all
collection  expenses,  including  reasonable  attorneys'  fees and court  costs,
incurred in the  collection  or  enforcement  of all or any part of this Note in
which the Holder is the prevailing party. In the event of any court proceedings,
court  costs and  attorneys'  fees shall be set by the court and not by jury and
shall be included in any judgment obtained by the Holder.

     Failure of the Holder to exercise any option hereunder shall not constitute
a waiver of the right to exercise same in the event of any  subsequent  default,
or in the event of continuance  of any existing  default after demand for strict
performance hereof.

     This Note is entitled to the benefit of the Credit  Agreement and the other
Loan Documents.

     This Note shall be binding  upon Maker and its  successors  and assigns and
shall inure to the benefit of the payee hereof,  and any subsequent  transferees
of this Note, and their successors and assigns.

     This Note shall be governed by and  construed  according to the laws of the
State of Arizona.

     IN WITNESS  WHEREOF,  Maker has caused this Note to be executed by its duly
authorized corporate agent as of the day and year first above written.


                                        KNIGHT TRANSPORTATION, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Title:
                                              ----------------------------------


                                        QUAD-K LEASING, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Title:
                                              ----------------------------------

                                                                         "MAKER"

                                        2

                                  EXHIBIT "C-1"

                                 SWING LINE NOTE


$5,000,000.00                                                      April 6, 2001
                                                                Phoenix, Arizona


     FOR  VALUE  RECEIVED,  the  undersigned  (hereinafter  collectively  called
"Maker"),  hereby  promises to pay to the order of WELLS  FARGO  BANK,  NATIONAL
ASSOCIATION  (the "Swing Line  Lender"),  at its office at 100 West  Washington,
Phoenix,  Arizona  85003  (Attention:  Arizona  RCBO) in Dollars in  immediately
available   funds,  the  principal  sum  of  FIVE  MILLION  AND  NO/100  DOLLARS
($5,000,000.00) or the aggregate unpaid principal amount of all Swing Line Loans
(as such term and each other  capitalized  term used  herein are  defined in the
Credit Agreement hereinafter referred to) made by the Swing Line Lender pursuant
to the Credit  Agreement,  whichever is less,  and to pay interest in like funds
from the date hereof on the unpaid balance  thereof at the rates of interest per
annum and at the times specified in the Credit Agreement.

     Principal hereof shall be payable in the amounts and at the times set forth
in the Credit Agreement.

     Maker agrees to an effective rate of interest that is the rate stated above
plus any  additional  rate of interest  resulting  from any other charges in the
nature of interest  paid or to be paid by or on behalf of Maker,  or any benefit
received or to be received by the Swing Line  Lender,  in  connection  with this
Swing Line Note.

     This Swing Line Note is that  revolving  credit note referred to in Section
2.22 of the Credit  Agreement dated as of April 6, 2001 by and among Maker,  the
Banks  named  therein,  the  Swing  Line  Lender,  Wells  Fargo  Bank,  National
Association,  as the  Administrative  Agent for the Banks  (the  "Administrative
Agent"), and The Northern Trust Company, an Illinois banking  corporation,  as a
Bank (as the same may be amended,  modified or restated  from time to time,  the
"Credit  Agreement").  All of the terms,  conditions and covenants of the Credit
Agreement are expressly  made a part of this Swing Line Note by reference in the
same manner and with the same effect as if set forth  herein at length and Swing
Line  Lender  or any  transferee  of this  Swing  Line Note  (sequentially,  the
"Holder")  is entitled to the  benefits of and  remedies  provided in the Credit
Agreement  and any other  agreements by and between Maker and Swing Line Lender.
Reference is made to the Credit Agreement for provisions regarding the maturity,
payment, prepayment and acceleration of the indebtedness evidenced hereby.

     After maturity, including maturity upon acceleration, all unpaid amounts of
this Swing Line Note shall bear  interest at the Default  Rate.  Maker agrees to
pay all collection  expenses,  including  reasonable  attorneys'  fees and court
costs,  incurred in the  collection  or  enforcement  of all or any part of this
Swing Line Note in which the Holder is the prevailing party. In the event of any
court proceedings, court costs and attorneys' fees shall be set by the court and
not by jury and shall be included in any judgment obtained by the Holder.

     Failure of the Holder to exercise any option hereunder shall not constitute
a waiver of the right to exercise same in the event of any  subsequent  default,
or in the event of continuance  of any existing  default after demand for strict
performance hereof.

     This Swing Line Note is entitled to the benefit of the Credit Agreement and
the other Loan Documents.

     This Swing Line Note shall be  binding  upon Maker and its  successors  and
assigns and shall inure to the benefit of the payee hereof,  and any  subsequent
transferees of this Swing Line Note, and their successors and assigns.

     This Swing Line Note shall be governed by and  construed  according  to the
laws of the State of Arizona.

     IN WITNESS WHEREOF, Maker has caused this Swing Line Note to be executed by
its duly authorized corporate agent as of the day and year first above written.


                                        KNIGHT TRANSPORTATION, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Title:
                                              ----------------------------------


                                        QUAD-K LEASING, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Title:
                                              ----------------------------------

                                                                         "MAKER"

                                        2

                                   EXHIBIT "D"

                        ADMINISTRATIVE DETAILS REPLY FORM


Re:  Facility for Knight Transportation, Inc., and its Significant Subsidiaries


1.   NAME OF ENTITY FOR SIGNATURE PAGE: ________________________________________

2.   NAME OF ENTITY AS IT SHOULD
     APPEAR IN ANY PUBLICITY: __________________________________________________
                              (if different than above)

3.   NAME OF PERSON TO RECEIVE DRAFT
     LOAN AGREEMENT AT BANK: ___________________________________________________

4.   NAME OF PERSON TO SIGN
     LOAN AGREEMENT:

5.   CONTACTS:        CREDIT CONTACT     OPERATIONS CONTACT     LEGAL COUNSEL
                    ------------------   ------------------   ------------------

     Name:          __________________   __________________   __________________

     Title:         __________________   __________________   __________________

     Address:       __________________   __________________   __________________

                    __________________   __________________   __________________

                    __________________   __________________   __________________

     Telephone:     __________________   __________________   __________________

     Facsimile #:   __________________   __________________   __________________

     Telex #:       __________________   __________________   __________________

     Answerback:    __________________   __________________   __________________

6.   PAYMENT INSTRUCTIONS:

     Method of Payment: Fedwire _________________   Chips ______________________

     Pay to:            ________________________________________________________

     Name of Bank:      ________________________________________________________

     City, State, Zip:  ________________________________________________________

     ABA Number:        _______________________   Reference: ___________________

     Account Number:    _______________________   Account Name: ________________

     Attention:         ________________________________________________________

                                        2

                                   EXHIBIT "E"

                            MATTERS TO BE COVERED BY
                          THE LEGAL OPINION OF COUNSEL


     1.  ____________________________________  (the "Borrower") is a corporation
duly  incorporated,  validly existing and in good standing under the laws of the
State of Arizona,  and has all  corporate  power and all  material  governmental
licenses,  authorizations,  consents  and  approvals  required  to  carry on its
business as now conducted.

     2. Each Subsidiary identified in Schedule "3.15" of the Credit Agreement is
a corporation duly  incorporated,  validly existing,  and in good standing under
the laws of the jurisdiction of its  incorporation,  and has all corporate power
and all material governmental licenses,  authorizations,  consents and approvals
to carry on its business as now conducted.

     3. The  execution,  delivery  and  performance  by the Borrower of the Loan
Documents are within  Borrower's  corporate power,  have been duly authorized by
all necessary  corporate  action,  and require no action by or in respect of, or
filing with, any  Governmental  Authority and neither the execution and delivery
thereof  nor the  consummation  of the  transactions  contemplated  thereby  nor
compliance by the Borrower with any, nor the  Borrower's  performance of all, of
the  terms  and  provisions  of the  Loan  Documents  will  contravene  any  law
applicable to it or conflict  with,  result in any breach of, or constitute  any
default under,  its certificate of  incorporation or by-laws (both as amended to
date) or conflict with, result in any breach of, or constitute default under, or
result in the creation of a Lien under, or require the consent of any trustee or
creditor pursuant to, any indenture,  mortgage, chattel mortgage, deed of trust,
conditional  sales contract,  lease,  bank loan or credit agreement to which the
Borrower is a party or by which it or its assets are bound, known to us.

     4. Each  Loan  Document  has been  duly  authorized  and  delivered  by the
Borrower,  and is the  legal,  valid and  binding  obligation  of the  Borrower,
enforceable  against  it in  accordance  with its terms,  except as  enforcement
thereof may be limited by  applicable  bankruptcy,  insolvency  or other laws or
equitable  principles  of general  application  relating to the  enforcement  of
creditors' rights.

     5. To the best  knowledge of such counsel  after due inquiry,  there are no
actions,  suits or proceedings  pending or threatened in any court or before any
regulatory  commission,  board or  other  administrative  or other  governmental
entity against or affecting the Borrower  which could  reasonably be expected to
have a material  adverse  effect on its  ability  to enter  into or perform  its
obligations  under any of the Loan  Documents or on the condition  (financial or
otherwise),  operations,  business or  prospects of the  Borrower,  except those
described in the Borrower's report on Form 10-K for its most recently  completed
fiscal year ended ___________, _____.

     6. No consent,  approval,  waiver, license or authorization or other action
by or filing with any governmental  authority is required in connection with the
execution  and delivery by the Borrower of the Loan  Documents  except for those
which have already been obtained and are in full force and effect.

                                   EXHIBIT "F"

                        QUARTERLY COMPLIANCE CERTIFICATE
                            FOR FISCAL QUARTER ENDING
                             ________________, 20__


WELLS FARGO BANK, NATIONAL ASSOCIATION
As Administrative Agent for the Banks
100 West Washington
Phoenix, Arizona  85003

Attn: Arizona RCBO                                       Date: _________________

Dear Ladies and Gentlemen:

     This Quarterly Compliance  Certificate refers to the Credit Agreement dated
as of April 6, 2001 (as it may  hereafter  be  amended,  modified,  extended  or
restated   from  time  to  time,   the   "Credit   Agreement"),   among   KNIGHT
TRANSPORTATION,  INC., an Arizona corporation,  and its Significant Subsidiaries
(collectively,  "Borrower"), the Banks named therein, WELLS FARGO BANK, NATIONAL
ASSOCIATION  as  Administrative  Agent for the  Banks,  and THE  NORTHERN  TRUST
COMPANY, an Illinois banking corporation,  as a Bank. Capitalized terms used and
not otherwise  defined herein shall have the meanings  assigned to such terms in
the Credit Agreement.

     Pursuant  to  Section  5.4 of the  Credit  Agreement,  the  undersigned,  a
Financial Officer of Borrower, certifies that:

     1. Enclosed are the required financial statements for the [quarter] [fiscal
year] (the "Reporting Period") ending for Borrower as required under Section 5.4
of the Credit Agreement.

     2. To the best of the  undersigned's  knowledge,  no "Event of  Default" or
Potential  Default  has  occurred  [or if so,  specifying  the nature and extent
thereof and any corrective actions taken or to be taken].

     3. As of the last day of the Reporting Period,  the computations below were
true and correct:

I.   SECTION 5.11(a)   Tangible Net Worth
                       Initial Amount                             $95,000,000.00
                       +50% of positive net income
                       since March 31, 2001                       $
                                                                  --------------
                       =Tangible Net Worth Limitation             $
                                                                  --------------

                       Actual Tangible Net Worth:                 $
                                                                  --------------

II.  SECTION 5.11(b)   EBITDA Coverage Ratio
                       (calculated on a rolling 4 quarter basis)

     Numerator:        Net Profit before Tax
                                                                  --------------
                       +Depreciation & Amortization Exp.
                                                                  --------------
                       +Interest Expense (net of capitalized
                       interest expense)
                                                                  --------------
                       =EBITDA                                                 A
                                                                  --------------

                       Divided by

     Denominator:      Interest expense
                                                                  --------------
                       Current maturity of long-term
                       debt (prior period)
                                                                  --------------
                       +Current maturity of subordinated
                       debt (prior period)
                       +Dividends/distributions
                                                                  --------------
                       =Payment Requirement                                    B
                                                                  --------------

                       Equals:                                               A/B
                                                                  --------------

                       Minimum Required:                                   3.00X
                                                                  --------------

III. SECTION 5.11(c)   Funded Debt to EBITDA Ratio
                       (calculated on a trailing 4 quarter basis)

     Numerator:        Indebtedness
                                                                  --------------
                       +Letter of Credit Balance
                                                                  --------------
                       =Funded Debt                                            A
                                                                  --------------

                       Divided by

     Denominator:      EBITDA                                                  B
                                                                  --------------

                       Equals:                                               A/B
                                                                  --------------

                       Maximum Permitted:                                  1.50X
                                                                  --------------

                                        2

IV.  SECTION 5.11(d)   (i) Net Income after Tax: actual           $
                                                                  --------------
                                                     Requirement  =>       $1.00
                                                                  --------------

                       (ii) Pre-Tax Profit: actual                $
                                                                  --------------
                                                     Requirement  =>       $1.00
                                                                  --------------

V.   SECTION 5.11(e)   Minimum Asset Coverage

     Numerator:        Cash
                                                                  --------------
                       +Net accounts receivable
                                                                  --------------
                       +real estate BV (<= $25,000,000.00)
                                                                  --------------
                       +rolling stock NBV
                                                                  --------------
                       =Assets                                                 A
                                                                  --------------

                       Divided by:

     Denominator:      Accounts Payable
                                                                  --------------
                       +Outstanding Indebtedness
                                                                  --------------
                       =Total                                                  B
                                                                  --------------

                       Equals                                                A/B
                                                                  --------------

                       Minimum Required                                   120.0%
                                                                  --------------


                                        KNIGHT TRANSPORTATION, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Title:
                                              ----------------------------------

                                        3

                                   EXHIBIT "G"

                              ASSUMPTION AGREEMENT


     BY THIS ASSUMPTION  AGREEMENT (the "Agreement") made and entered into as of
the _____ day of _________________, 20__, ______________________________________
_______________________________________________________________,  whose  address
is _____________________________________________________________________________
(hereinafter  called "Added Borrower"),  in favor of WELLS FARGO BANK,  NATIONAL
ASSOCIATION,  as Administrative  Agent for the Banks,  whose address is 100 West
Washington,  Phoenix,  Arizona 85003,  Attn:  Arizona RCBO  (hereinafter  called
"Administrative  Agent"),  in consideration of the recitals herein contained and
other good and valuable  consideration,  the receipt and sufficiency of which is
hereby acknowledged, confirms and agrees as follows:

SECTION 1. RECITALS.

     1.1 Added Borrower is a Significant  Subsidiary (as that term is defined in
the Agreement  hereinafter defined) of Knight  Transportation,  Inc., an Arizona
corporation  (the  "Company"),  and its then existing  Significant  Subsidiaries
(with the Company, the "Borrower").

     1.2 As such,  Added Borrower is benefitted by the financial  accommodations
(the  "Loans")  advanced  by the Banks to the  Borrower  pursuant to that Credit
Agreement dated April 6, 2001 among the Banks named therein,  the Administrative
Agent, the Swing Line Lender and Borrower (the "Agreement").

     1.3 A  condition  for  the  continuation  of  the  Loans  specified  in the
Agreement is that any subsequently acquired or created Subsidiary of the Company
assume as a  "Co-Borrower"  within the meaning of Section 5.12 of the  Agreement
the  obligations of the Borrower  under the Agreement,  and agree to be bound by
all of the terms,  conditions  and provisions  thereof,  and agree to be jointly
liable with the Borrower for the full payment and  satisfaction of the Loans and
all other obligations of the Borrower under the Agreement.

     1.4  Because  of the  benefits  derived  by the  Added  Borrower  from said
financial accommodations,  which consideration is acknowledged by Added Borrower
as sufficient for its agreements herein, Added Borrower desires to so agree.

SECTION 2. ASSUMPTION.

     2.1 Added Borrower hereby assumes as a "Co-Borrower"  and agrees to perform
as a  "Co-Borrower"  all of the duties,  obligations and promises of Borrower as
set forth in or arising under the Agreement, to be bound as a Co-Borrower by all
of  the  terms,  conditions  and  provisions  of  the  Agreement  and to do as a
Co-Borrower  any and all acts and things required under the Agreement to be done
by Borrower.

SECTION 3. MISCELLANEOUS.

     3.1 Added  Borrower  shall  execute such  additional  documents and do such
other acts as may be reasonably  necessary to fully implement the intent of this
Agreement.

     3.2 This Agreement shall be governed by and construed according to the laws
of the State of Arizona.

     3.3 This  Agreement  shall be binding upon,  and shall inure to the benefit
of, the parties hereto and their heirs, personal representatives, successors and
assigns.

     IN WITNESS  WHEREOF,  these  presents are executed as of the date indicated
above.

                                        ----------------------------------------


                                        By:
                                           -------------------------------------
                                           Its:
                                               ---------------------------------

                                                                  ADDED BORROWER

                                        2

                                   EXHIBIT "H"

                               SECURITY AGREEMENT


     THIS  SECURITY  AGREEMENT  is made and entered  into as of the _____ day of
_________________,   2001,  by   ____________________,   __________  corporation
(hereinafter  called "Debtor"),  whose chief executive office is located at 5601
West  Buckeye  Road,  Phoenix,  Arizona  85043,  in favor of WELLS  FARGO  BANK,
NATIONAL ASSOCIATION, and its successors and assigns as Administrative Agent for
the Banks (as defined in the hereinafter  defined Credit Agreement) and as Swing
Line Lender  (hereinafter  called  "Secured  Party"),  whose address is 100 West
Washington, Phoenix, Arizona 85003, Attention: Arizona RCBO.

1.   SECURITY INTEREST

     Debtor  hereby  grants to Secured  Party a security  interest  (hereinafter
called the "Security  Interest") in all of Debtor's right, title and interest in
and to the  following  described  personal  property  described  on  Schedule  A
attached hereto (the "Collateral").

2.   OBLIGATION SECURED

     The Security  Interest  shall secure,  in such order of priority as Secured
Party may elect:

          (a) Payment of the  aggregate sum of  $50,000,000.00  according to the
     terms of those  Revolving  Promissory  Notes dated  April 6, 2001,  made by
     Knight  Transportation,  Inc., an Arizona  corporation  and its Significant
     Subsidiaries  (as  defined  in the  Credit  Agreement)  (collectively,  the
     "Borrower"),  payable to the order of the  Banks,  evidencing  a  revolving
     lines of  credit,  all or any part of which may be  advanced  to  Borrower,
     repaid by Borrower and readvanced to Borrower,  from time to time,  subject
     to the terms and conditions thereof,  with interest thereon,  extension and
     other  fees,  late  charges,   prepayment  premiums  and  attorneys'  fees,
     according to the terms thereof, and all extensions, modifications, renewals
     or replacements thereof (hereinafter collectively called the "RLC Note");

          (b) Payment of the sum of $5,000,000.00 according to the terms of that
     Swing Line Note dated April 6, 2001, made by Borrower, payable to the order
     of the Swing Line Lender, evidencing a revolving line of credit, all or any
     part  of  which  may be  advanced  to  Borrower,  repaid  by  Borrower  and
     readvanced  to  Borrower,  from  time to time,  subject  to the  terms  and
     conditions thereof,  with interest thereon,  extension and other fees, late
     charges,  prepayment  premiums and attorneys' fees,  according to the terms
     thereof,  and  all  extensions,  modifications,  renewals  or  replacements
     thereof (hereinafter with the RLC Note collectively called the "Note");

          (c) Payment,  performance  and  observance by Debtor of each covenant,
     condition,  provision  and  agreement  contained  herein  and of all monies
     expended or advanced  by Secured  Party or the Banks  pursuant to the terms
     hereof,  or to preserve any right of Secured Party and the Banks hereunder,
     or to protect or preserve the Collateral or any part thereof;

          (d) Payment,  performance and observance by Borrower of each covenant,
     condition, provision and agreement contained in that Credit Agreement dated
     April 6, 2001,  by and  between  Borrower,  Secured  Party,  the Swing Line
     Lender and the Banks listed from time to time therein  (hereinafter  called
     the "Credit  Agreement") and in any other document or instrument related to
     the indebtedness  described in  subparagraphs  (a) and (b) above and of all
     monies  expended or advanced by Secured Party or the Banks  pursuant to the
     terms  thereof  or to  preserve  any  right of  Secured  Party or the Banks
     thereunder;

          (e)  Payment  and  performance  of any  and  all  other  indebtedness,
     obligations  and  liabilities  of  Borrower  to the Banks of every kind and
     character,  direct or indirect,  absolute or  contingent,  due or to become
     due, now existing or hereafter incurred,  whether such indebtedness is from
     time to time reduced and thereafter increased or entirely  extinguished and
     thereafter reincurred;

All  of  the  indebtedness  and  obligations   secured  by  this  Agreement  are
hereinafter collectively called the "Obligation."

3.   USE; LOCATION

     3.1. The  Collateral is or will be used or produced  primarily for business
purposes.

     3.2.  The  Collateral  will be kept at  Debtor's  address  set forth at the
beginning  of this  Agreement  and/or  at the  locations  listed on  Schedule  B
attached hereto.

     3.3.  Debtor's  records  concerning the Collateral will be kept at Debtor's
address set forth at the beginning of this Agreement.

4.   REPRESENTATIONS AND WARRANTIES OF DEBTOR

     4.1.  Debtor hereby  represents and warrants that it (i) is qualified to do
business  and is in good  standing  under  the laws of the  state  in which  the
Collateral is located; and (ii) is fully authorized and permitted to execute and
deliver  this  Agreement  and to enter into any  transactions  evidenced  by any
portion of the Collateral.

     4.2. The  execution,  delivery and  performance by Debtor of this Agreement
and all other  documents and  instruments  relating to the  Obligation  will not
result in any breach of the terms and  conditions  or constitute a default under
any agreement or instrument under which Debtor is a party or is obligated.

                                        2

     4.3.  Debtor  does not conduct  business  under any name other than that in
which it has executed this Agreement.

     4.4. FEDERAL EMPLOYER  IDENTIFICATION NUMBER. The Debtor's Federal employer
identification number is ______-_______

     4.5. STATE ORGANIZATION NUMBER. If the Debtor is a registered organization,
the Debtor's state organization number is _________________.

5.   COVENANTS OF DEBTOR

     5.1. Debtor shall not sell,  transfer,  assign or otherwise  dispose of any
Collateral  or any  interest  therein  (except as  permitted  herein)  except as
permitted  under the Credit  Agreement and shall keep the Collateral free of all
security  interests  or other  encumbrances  except the  Security  Interest  and
Permitted Liens (as defined in the Credit Agreement).

     5.2.  Debtor shall keep and maintain the  Collateral in good  condition and
repair and shall not use the  Collateral  in violation of any  provision of this
Agreement or any  applicable  statute,  ordinance or regulation or any policy of
insurance insuring the Collateral.

     5.3.  Debtor shall provide and maintain  insurance  insuring the Collateral
against risks, with coverage in accordance with the Credit Agreement.

     5.4. The Debtor will not sign or authorize the signing on its behalf or the
filing  of any  financing  statement  naming it as  debtor  covering  all or any
portion of the Collateral except as permitted by the Credit Agreement.

     5.5.  Debtor,  upon demand,  shall  promptly  deliver to Secured  Party all
instruments,  documents and chattel  paper  included in the  Collateral  and all
invoices,  shipping or delivery  records,  purchase  orders,  contracts or other
items related to the Collateral.

     5.6. Debtor shall give Secured Party immediate written notice of any change
in the location of: (i) Debtor's chief executive office;  (ii) Debtor's state of
organization;  (iii)  the  Collateral  or any  material  part  thereof;  or (iv)
Debtor's records concerning the Collateral.

     5.7.  Secured Party or its agents may inspect the  Collateral at reasonable
times and may enter into any premises where the Collateral is or may be located.
Debtor shall keep records concerning the Collateral in accordance with generally
accepted  accounting  principles and, unless waived in writing by Secured Party,
shall mark its records and the  Collateral  to indicate the  Security  Interest.
Secured Party shall have free and complete access to Debtor's  records and shall
have the right to make extracts therefrom or copies thereof.

     5.8.  Debtor,  at its cost and  expense,  shall  protect  and  defend  this
Agreement,  all of the rights of Secured  Party  hereunder,  and the  Collateral
against all claims and demands of other parties,  including  without  limitation

                                        3

defenses,  setoffs,  claims and  counterclaims  asserted by any Obligor  against
Debtor and/or Secured Party. Debtor shall pay all claims and charges that in the
opinion of Secured  Party  might  prejudice,  imperil  or  otherwise  affect the
Collateral or the Security Interest.  Debtor shall promptly notify Secured Party
of any levy,  distraint  or other  seizure by legal  process or otherwise of any
part of the Collateral and of any threatened or filed claims or proceedings that
might in any way affect or impair the terms of this Agreement.

     5.9. The Security  Interest,  at all times, shall be perfected and shall be
prior to any other interests in the Collateral.  Debtor shall act and perform as
necessary  and  shall  execute  and  file  all  security  agreements,  financing
statements,  continuation  statements and other  documents  requested by Secured
Party to  establish,  maintain  and continue the  perfected  Security  Interest.
Debtor,  on demand,  shall  promptly  pay all costs and  expenses  of filing and
recording,  including  the costs of any  searches,  deemed  necessary by Secured
Party  from  time  to time to  establish  and  determine  the  validity  and the
continuing priority of the Security Interest.

     5.10.  If Debtor  shall fail to pay any  taxes,  assessments,  expenses  or
charges,  to keep all of the  Collateral  free from  other  security  interests,
encumbrances or claims,  to keep the Collateral in good condition and repair, to
procure and  maintain  insurance  thereon,  or to perform  otherwise as required
herein,  Secured  Party may advance  the monies  necessary  to pay the same,  to
accomplish  such  repairs,  to procure  and  maintain  such  insurance  or to so
perform;  Secured  Party is hereby  authorized to enter upon any property in the
possession or control of Debtor for such purposes.

     5.11.  All rights,  powers and remedies  granted  Secured Party herein,  or
otherwise available to Secured Party, are for the sole benefit and protection of
Secured Party, and Secured Party may exercise any such right, power or remedy at
its option and in its sole and absolute  discretion without any obligation to do
so. In addition,  if under the terms hereof,  Secured Party is given two or more
alternative  courses  of  action,  Secured  Party may elect any  alternative  or
combination  of  alternatives  at  its  option  and  in its  sole  and  absolute
discretion.  All monies advanced by Secured Party under the terms hereof and all
amounts paid,  suffered or incurred by Secured Party in exercising any authority
granted herein,  including  reasonable  attorneys'  fees,  shall be added to the
Obligation,  shall be secured by the Security  Interest,  shall bear interest at
the highest rate payable on any of the  Obligation  until paid, and shall be due
and payable by Debtor to Secured Party immediately without demand.

6.   NOTIFICATION AND PAYMENTS;  COLLECTION OF COLLATERAL;  USE OF COLLATERAL BY
     DEBTOR

     6.1.  Secured  Party,  after the  occurrence  of any Event of  Default,  as
defined in the Credit Agreement, and without notice to Debtor, may notify any or
all  Obligors  of the  existence  of the  Security  Interest  and may direct the
Obligors to make all payments on the Collateral to Secured Party.  Until Secured
Party has notified the Obligors to remit  payments  directly to it,  Debtor,  at
Debtor's  own cost and  expense,  shall  collect  or cause to be  collected  the
accounts and monies due under the accounts,  documents,  instruments and general
intangibles or pursuant to the terms of the chattel  paper.  Secured Party shall
not be liable or responsible  for any  embezzlement,  conversion,  negligence or

                                        4

default by Debtor or  Debtor's  agents  with  respect to such  collections;  all
agents  used in such  collections  shall be agents of Debtor  and not  agents of
Secured Party.  Unless  Secured Party notifies  Debtor in writing that it waives
one or more of the  requirements  set forth in this  sentence,  any  payments or
other proceeds of Collateral received by Debtor, after notification to Obligors,
shall be held by  Debtor in trust  for  Secured  Party in the same form in which
received,  shall not be commingled with any assets of Debtor and shall be turned
over to Secured  Party not later than the next business day following the day of
receipt. All payments and other proceeds of Collateral received by Secured Party
directly or from  Debtor  shall be applied to the  Obligation  in such order and
manner  and at  such  time as  Secured  Party,  in its  sole  discretion,  shall
determine. In addition, Debtor shall promptly notify Secured Party of the return
to or possession by Debtor of goods underlying any Collateral; Debtor shall hold
the same in trust for  Secured  Party and shall  dispose  of the same as Secured
Party directs.

     6.2.  Secured Party,  before or after the occurrence of an Event of Default
and  without  notice to Debtor,  may demand,  collect and sue on the  Collateral
(either in Debtor's or Secured  Party's name),  enforce,  compromise,  settle or
discharge  the  Collateral  and  endorse   Debtor's  name  on  any  instruments,
documents, or chattel paper included in or pertaining to the Collateral;  Debtor
hereby  irrevocably  appoints  Secured  Party its  attorney in fact for all such
purposes.

     6.3.  Until the  occurrence  of an Event of Default,  Debtor may:  (i) use,
consume and sell any inventory  included in the  Collateral in any lawful manner
in the ordinary course of Debtor's  business provided that all sales shall be at
commercially  reasonable  prices;  and (ii)  subject to  Paragraphs  6.1 and 6.2
above, retain possession of any other Collateral and use it in any lawful manner
consistent with this Agreement.

7.   COLLATERAL IN THE POSSESSION OF SECURED PARTY

     7.1.  Secured Party shall use such reasonable care in handling,  preserving
and protecting  the Collateral in its possession as it uses in handling  similar
property for its own account.  Secured Party,  however,  shall have no liability
for the loss,  destruction or  disappearance  of any Collateral  unless there is
affirmative  proof of a lack of due  care;  the lack of due  care  shall  not be
implied solely by virtue of any loss, destruction or disappearance.

     7.2.  Debtor shall be solely  responsible for taking any and all actions to
preserve  rights  against all Obligors;  Secured Party shall not be obligated to
take any such  actions  whether  or not the  Collateral  is in  Secured  Party's
possession. Debtor waives presentment and protest with respect to any instrument
included  in the  Collateral  on which  Debtor is in any way  liable  and waives
notice of any action  taken by Secured  Party  with  respect to any  instrument,
document or chattel paper included in any  Collateral  that is in the possession
of Secured Party.

8.   EVENTS OF DEFAULT; REMEDIES

     8.1. The  occurrence  of any of the following  events or  conditions  shall
constitute and is hereby defined to be an "Event of Default":

                                        5

          (a) Any  failure or  neglect  to perform or observe  any of the terms,
     provisions, conditions, or covenants of this Agreement.

          (b)  Any  warranty,  representation  or  statement  contained  in this
     Agreement.

          (c) The  occurrence of any event of default under the Note, the Credit
     Agreement  or any other  document or  instrument  executed or  delivered in
     connection with the Obligation.

     8.2. Upon the occurrence of any Event of Default and at any time while such
Event of Default is  continuing,  Secured Party shall have the following  rights
and remedies and may do one or more of the following:

          (a) Without  further notice or demand and without legal process,  take
     possession of the Collateral  wherever  found and, for this purpose,  enter
     upon any  property  occupied by or in the control of Debtor.  Debtor,  upon
     demand by Secured  Party,  shall  assemble the Collateral and deliver it to
     Secured Party or to a place  designated by Secured Party that is reasonably
     convenient to both parties.

          (b) Operate  the  business  of Debtor as a going  concern,  including,
     without  limitation,  extend sales or services to new customers and advance
     funds  for such  operation.  Secured  Party  shall  not be  liable  for any
     depreciation, loss, damage or injury to the Collateral or other property of
     Debtor  as a result  of such  action.  Debtor  hereby  waives  any claim of
     trespass or replevin arising as a result of such action.

          (c) Pursue any legal or  equitable  remedy  available  to collect  the
     Obligation,  to  enforce  its  title  in and  right  to  possession  of the
     Collateral and to enforce any and all other rights or remedies available to
     it.

          (d) Upon  obtaining  possession of the Collateral or any part thereof,
     after  notice to Debtor as provided  in  Paragraph  8.4  herein,  sell such
     Collateral  at public or private  sale either  with or without  having such
     Collateral at the place of sale. The proceeds of such sale, after deducting
     therefrom all expenses of Secured Party in taking,  storing,  repairing and
     selling the  Collateral  (including  reasonable  attorneys'  fees) shall be
     applied  to the  payment  of the  Obligation,  and any  surplus  thereafter
     remaining  shall be paid to Debtor or any other  person that may be legally
     entitled  thereto.  In the event of a deficiency  between such net proceeds
     from the sale of the  Collateral  and the total  amount of the  Obligation,
     Debtor,  upon demand,  shall promptly pay the amount of such  deficiency to
     Secured Party.

                                        6

     8.3.  The Banks,  so far as may be lawful,  may purchase all or any part of
the Collateral  offered at any public or private sale made in the enforcement of
Secured Party's rights and remedies hereunder.

     8.4. Any demand or notice of sale,  disposition  or other  intended  action
hereunder or in connection  herewith,  whether  required by the Arizona  Uniform
Commercial Code or otherwise,  shall be deemed to be commercially reasonable and
effective  if such  demand or  notice is given to Debtor at least  five (5) days
prior to such sale, disposition or other intended action, in the manner provided
herein for the giving of notices.

     8.5. Debtor shall pay all costs and expenses,  including without limitation
costs of Uniform Commercial Code searches, court costs and reasonable attorneys'
fees,  incurred by Secured  Party in enforcing  payment and  performance  of the
Obligation or in exercising the rights and remedies of Secured Party  hereunder.
All such costs and expenses  shall be secured by this Agreement and by all deeds
of trust and other lien and security documents  securing the Obligation.  In the
event of any court proceedings,  court costs and attorneys' fees shall be set by
the court and not by jury and shall be  included  in any  judgment  obtained  by
Secured Party.

     8.6. In addition to any remedies  provided  herein for an Event of Default,
Secured  Party shall have all the rights and remedies  afforded a secured  party
under the Uniform  Commercial  Code and all other legal and  equitable  remedies
allowed  under  applicable  law.  No  failure  on the part of  Secured  Party to
exercise any of its rights hereunder  arising upon any Event of Default shall be
construed to prejudice its rights upon the occurrence of any other or subsequent
Event of Default.  No delay on the part of Secured Party in exercising  any such
rights shall be  construed to preclude it from the exercise  thereof at any time
while that Event of Default is continuing.  Secured Party may enforce any one or
more rights or remedies  hereunder  successively or  concurrently.  By accepting
payment or  performance  of any of the  Obligation  after its due date,  Secured
Party shall not thereby waive the agreement contained herein that time is of the
essence,  nor shall  Secured  Party  waive  either its right to  require  prompt
payment or performance  when due of the remainder of the Obligation or its right
to consider the failure to so pay or perform an Event of Default.

     8.7. Secured Party, as the  Administrative  Agent, shall have no obligation
to clean-up or otherwise prepare the Collateral for sale.

9.   MISCELLANEOUS PROVISIONS

     9.1.  The  acceptance  of this  Agreement  by  Secured  Party  shall not be
considered a waiver of or in any way to affect or impair any other security that
Secured Party may have, acquire  simultaneously  herewith,  or hereafter acquire
for the  payment  or  performance  of the  Obligation,  nor shall the  taking by
Secured  Party at any time of any such  additional  security be  construed  as a
waiver of or in any way to affect or impair the Security Interest; Secured Party
may resort,  for the payment or  performance of the  Obligation,  to its several
securities therefor in such order and manner as it may determine.

                                        7

     9.2. Without notice or demand,  without affecting the obligations of Debtor
hereunder or the personal  liability of any person for payment or performance of
the  Obligation,  and without  affecting  the Security  Interest or the priority
thereof,  the Banks,  from time to time, may: (i) extend the time for payment of
all or any part of the  Obligation,  accept a renewal note therefor,  reduce the
payments  thereon,  release any person  liable for all or any part  thereof,  or
otherwise  change the terms of all or any part of the Obligation;  (ii) take and
hold  other  security  for the  payment or  performance  of the  Obligation  and
enforce, exchange, substitute,  subordinate, waive or release any such security;
(iii) join in any extension or subordination agreement; or (iv) release any part
of the Collateral from the Security Interest.

     9.3.  Debtor  waives and  agrees  not to  assert:  (i) any right to require
Secured Party to proceed  against any guarantor,  to proceed  against or exhaust
any other security for the Obligation,  to pursue any other remedy  available to
Secured Party, or to pursue any remedy in any particular  order or manner;  (ii)
the  benefits of any legal or equitable  doctrine or  principle of  marshalling;
(iii) the  benefits  of any statute of  limitations  affecting  the  enforcement
hereof; (iv) demand, diligence, presentment for payment, protest and demand, and
notice of extension,  dishonor, protest, demand and nonpayment,  relating to the
Obligation;  and (v) any benefit of, and any right to participate  in, any other
security now or hereafter held by Secured Party.

     9.4. The terms herein shall have the meanings in and be construed under the
Uniform  Commercial  Code as in  effect  in  Arizona  from  time to  time.  This
Agreement shall be governed by and construed  according to the laws of the State
of Arizona. Each provision of this Agreement shall be interpreted in such manner
as to be effective and valid under  applicable law, but if any provision of this
Agreement is held to be void or invalid, the same shall not affect the remainder
hereof which shall be effective as though the void or invalid  provision had not
been contained herein.

     9.5. No  modification,  rescission,  waiver,  release or  amendment  of any
provision of this Agreement shall be made except by a written agreement executed
by Debtor and a duly authorized officer of Secured Party.

     9.6.  This is a continuing  Agreement  which shall remain in full force and
effect until actual receipt by Secured Party of written notice of its revocation
as to future  transactions and shall remain in full force and effect  thereafter
until all of the Obligation  incurred before the receipt of such notice, and all
of the Obligation  incurred  thereafter  under  commitments  extended by Secured
Party before the receipt of such notice,  shall have been paid and  performed in
full.

     9.7.  No setoff or claim  that  Debtor  now has or may in the  future  have
against  Secured  Party  shall  relieve  Debtor from  paying or  performing  the
Obligation.

     9.8.  Time is of the  essence  hereof.  If more  than one  Debtor  is named
herein, the word "Debtor" shall mean all and any one or more of them,  severally
and  collectively.  All  liability  hereunder  shall be joint and several.  This
Agreement  shall be binding upon, and shall inure to the benefit of, the parties
hereto and their heirs,  personal  representatives,  successors and assigns. The
term "Secured Party" shall include not only the original Secured Party hereunder
but also any  future  owner and  holder,  including  pledgees,  of note or notes

                                        8

evidencing  the  Obligation.  The  provisions  hereof shall apply to the parties
according to the context  thereof and without  regard to the number or gender of
words or expressions used.

     9.9. All notices  required or permitted to be given  hereunder  shall be in
writing and may be given in person or by United States mail, by delivery service
or by electronic transmission.  Any notice directed to a party to this Agreement
shall become effective upon the earliest of the following: (i) actual receipt by
that party; (ii) delivery to the designated address of that party,  addressed to
that party;  or (iii) if given by certified or  registered  United  States mail,
twenty-four  (24) hours after  deposit with the United  States  Postal  Service,
postage  prepaid,  addressed  to  that  party  at its  designated  address.  The
designated  address of a party  shall be the  address of that party shown at the
beginning of this  Agreement or such other  address as that party,  from time to
time, may specify by notice to the other parties.

     9.10. A carbon,  photographic  or other  reproduced  copy of this Agreement
and/or any financing  statement  relating  hereto shall be sufficient for filing
and/or recording as a financing statement.

10.  NON-DEBTOR BORROWER PROVISIONS

     10.1.  All advances of  principal  under the Note shall be made to Borrower
subject  to  and  in  accordance  with  the  terms  thereof.  If  Borrower  is a
corporation  or  partnership,  it is not  necessary for Secured Party to inquire
into the powers of  Borrower  or the  officers,  directors,  partners  or agents
acting or  purporting to act on its behalf.  Debtor is and shall  continue to be
fully  informed as to all aspects of the  business  affairs of Borrower  that it
deems  relevant  to the  risks  it is  assuming  and  hereby  waives  and  fully
discharges  Secured Party from any and all  obligations to communicate to Debtor
any facts of any nature whatsoever  regarding  Borrower and Borrower's  business
affairs.

     10.2. Debtor authorizes  Secured Party,  without notice or demand,  without
affecting the obligations of Debtor  hereunder or the personal  liability of any
person for payment or performance  of the  Obligation and without  affecting the
lien or the priority of the Security Interest, from time to time, at the request
of any  person  primarily  obligated  therefor,  to renew,  compromise,  extend,
accelerate  or  otherwise  change  the time for  payment or  performance  of, or
otherwise  change  the terms of,  all or any part of the  Obligation,  including
increase or decrease any rate of interest thereon.  Debtor waives and agrees not
to assert:  (i) any right to require Secured Party to proceed against  Borrower;
(ii) the benefits of any statutory provision limiting the liability of a surety,
including  without  limitation the benefit of Section  12-1641,  ET SEQ., of the
Arizona  Revised  Statutes;  and  (iii)  any  defense  arising  by reason of any
disability or other  defense of Borrower or by reason of the cessation  from any
cause  whatsoever  of the  liability of Borrower.  Debtor shall have no right of
subrogation  and hereby  waives any right to enforce  any remedy  which  Secured
Party now has, or may hereafter have, against Borrower.

                                        9

     IN WITNESS  WHEREOF,  these  presents are executed as of the date indicated
above.

                                        _______________________________________,
                                        __________ corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                                          DEBTOR

                                       10

                                   SCHEDULE A

                                   COLLATERAL

     All of  Debtor's  right,  title and  interest  in and to all  Accounts  (as
defined in the Arizona  UCC),  Chattel  Paper (as  defined in the Arizona  UCC),
Documents (as defined in the Arizona UCC),  Equipment (as defined in the Arizona
UCC),  Fixtures (as defined in the Arizona UCC), General Intangibles (as defined
in the Arizona UCC),  Instruments (as defined in the Arizona UCC), Inventory (as
defined in the Arizona UCC), Investment Property(as defined in the Arizona UCC),
any Deposit  Accounts (as defined in the Arizona  UCC) pledged to Secure  Party,
Deposits,  cash,  letters of credit,  stock rights and other deposits,  it being
intended that the Collateral  include all property of the Debtor other than real
property,  whether located in which the Debtor now has or hereafter acquires any
right or interest,  and the proceeds,  insurance  proceeds and products thereof,
together with all books and records,  customer  lists,  credit  files,  computer
files,  programs,  printouts and other  computer  materials and records  related
thereto,  together with (i) all policies or certificates  of insurance  covering
any of the  foregoing  property,  and all awards,  loss  payments,  proceeds and
premium refunds that may become payable with respect to such policies;  (ii) all
property of Debtor that is now or may hereafter be in the  possession or control
of Secured Party in any capacity,  including without  limitation all monies owed
or that become owed by Secured Party to Debtor; and (iii) all proceeds of any of
the foregoing property,  whether due or to become due from any sale, exchange or
other  disposition  thereof,  whether  cash or non-cash  in nature,  and whether
represented by checks,  drafts,  notes or other  instruments  for the payment of
money, including,  without limitation, all property, whether cash or non-cash in
nature,  derived from tort,  contractual  or other claims  arising in connection
with any of the foregoing  property.  The terms herein shall have the meaning in
and be construed under the Uniform  Commercial Code as in effect in Arizona from
time to time (the "Arizona  UCC").  All property  described above is hereinafter
called the "Collateral."

                                   SCHEDULE B

                             LOCATION OF COLLATERAL

                                  SCHEDULE 2.1

                              COMMITMENTS OF BANKS
                               as to the Facility
                                as of XXXX, 2001

                                                              Euro Dollar
             BANK                 %            $            Lending Office
             ----              -------   --------------    -----------------
1.   Wells Fargo Bank,
     National Association       70.0%     $35,000,000      _________________

2.   The Northern Trust
     Company                    30.0%     $15,000,000      _________________

     ______________________    _______   ______________    _________________

     ______________________    _______   ______________    _________________

     Maximum RLC
     Commitment                  100%    $50,000,000.00    _________________

ADDRESSES:

     1.   100 West Washington
          Phoenix, Arizona  85003
          Attention: Jeff Lowe, Arizona RCBO
          Phone: 602-378-1230
          Fax: 602-378-4758

     2.   50 South La Salle Street, B-2
          Chicago, Illinois 60675
          Attention: Candelario Martinez, Corporate Banking
          Phone: 312-557-2816
          Fax: 312-444-7028

                                  SCHEDULE 2A.5

                           EXISTING LETTERS OF CREDIT



L/C NO.                     BENEFICIARY                          AMOUNT         EXPIRY DATE
- -------                     -----------                         ----------      -----------
                                                                         
242146      Comdata Network & its subsidiaries & affiliates     $   10,000        12/31/01
242220      United States Fire Insurance Company                $  400,000        02/01/02
242260      The Industrial Commission of Arizona                $  250,000        06/30/01
272643      Self Insurance Plan State of California             $  332,000        06/18/01
282513      Liberty Mutual Insurance Company                    $  250,000        10/01/01
319234      The Travelers Indemnity Company                     $1,300,000        03/05/02
389506      Protective Insurance Company                        $1,000,000        01/31/02
            Sagamore Insurance Company
            TOTAL                                               $3,542,000


                                  SCHEDULE 3.15

                             BORROWER'S SUBSIDIARIES

*Quad-K Leasing, Inc., an Arizona corporation
Knight Administrative Services, Inc., an Arizona corporation
KTTE Holdings, Inc., a Nevada corporation
QKTE Holdings, Inc., a Nevada corporation
Knight Management Services, Inc., an Arizona corporation
Knight Transportation Midwest, Inc., an Arizona corporation
Knight Transportation South Central Limited Partnership, a Nevada partnership
John Fayard Fast Freight, Inc., a Mississippi corporation
KTE Com, L.L.C.

*Significant Subsidiary

                                  SCHEDULE 6.1

                                 PERMITTED LIENS

                                    NUMBER          ORIGINAL         OUTSTANDING
                                   TRACTORS           DATE             3/31/01
                                   --------           ----             -------
Pitney Bowes                          85             Apr-00          $3,807,427
Pitney Bowes                          83             Jun-00           4,111,918
Pitney Bowes                          29             Oct-00           1,791,975
Pitney Bowes                          33             Oct-00           2,203,530
Pitney Bowes                          11             Nov-00             755,332
Pitney Bowes                          56             Dec-00           4,099,258
Bank of America                       54             Dec-00           3,681,760

                                  SCHEDULE 6.2

                              EXISTING INDEBTEDNESS


1.   Term Loan with the  Company  from Wells  Fargo,  maturing  October 1, 2003.
     Current balance as of April 6, 2001: $5,528,642.84.

2.   Lease  financing  between Quad K and Wells Fargo Equipment  Finance,  Inc.,
     dated June 1, 2000, guaranteed by the Company.

3.   The Interest  Rate Swap  Agreement,  dated  February 13, 2001,  between the
     Company and Wells Fargo.

4.   The Indebtedness shown on Schedule 6.1 hereof.

                             MODIFICATION AGREEMENT

     BY THIS MODIFICATION AGREEMENT (the "Agreement"),  made and entered into as
of the 5th day of  June,  2001,  WELLS  FARGO  BANK,  NATIONAL  ASSOCIATION,  as
administrative  agent (the  "Administrative  Agent") for the Banks listed in the
hereinafter  defined Credit  Agreement (the "Banks") and as the Issuing Bank and
the Swing Line Lender, and KNIGHT  TRANSPORTATION,  INC., an Arizona corporation
(the  "Company")  and all present  and future  Significant  Subsidiaries  of the
Company  (with the Company,  the  "Borrower"),  in  consideration  of the mutual
covenants  herein  contained  and other  good and  valuable  consideration,  the
receipt and  sufficiency  of which is hereby  acknowledged,  hereby  confirm and
agree as follows:

SECTION 1. RECITALS; ACKNOWLEDGEMENTS.

     1.1 The Borrower and the  Administrative  Agent and the Banks  entered into
that Credit  Agreement  dated April 6, 2001 (as amended  from time to time,  the
"Credit  Agreement")  to provide  financial  accommodations  to the  Borrower as
provided therein.

     1.2 Borrower and the  Administrative  Agent, with the consent of the Banks,
desire to modify the Credit Agreement as set forth herein.

     1.3 All  undefined  capitalized  terms used  herein  shall have the meaning
given them in the Credit Agreement.

SECTION 2. CREDIT AGREEMENT.

     2.1  Section  2.11 of the  Credit  Agreement  is hereby  amended to read as
follows:

          SECTION  2.11   CONVERSION  AND   CONTINUATION   OF  BORROWINGS.   The
     Administrative Agent agrees to communicate the proposed LIBOR Rate verbally
     or otherwise to the Borrower on or about 8:00 a.m., California time, on any
     proposed  conversion or continuation  date and thereupon the Borrower shall
     have  the  right  at  any  time  upon  prior  irrevocable   notice  to  the
     Administrative Agent not later than 10:00 a.m., California time, (i) on the
     day of  conversion,  to  convert  any  LIBOR  Borrowing  into  a Base  Rate
     Borrowing,  (ii) on the day of conversion or  continuation,  to convert any
     Base  Rate  Borrowing  into a LIBOR  Borrowing  or to  continue  any  LIBOR
     Borrowing as a LIBOR Borrowing for an additional Interest Period, and (iii)
     on the day of  conversion,  to convert the Interest  Period with respect to
     any LIBOR Borrowing to another permissible Interest Period, subject in each
     case to the following:

               (a) if less  than all the  outstanding  principal  amount  of any
     Borrowing shall be converted or continued,  the aggregate  principal amount
     of such Borrowing  converted or continued shall be an integral  multiple of
     $100,000.00 and not less than $1,000,000.00;

               (b) each  conversion  shall be  effected by the Banks by applying
     the proceeds of the new  Borrowing  resulting  from such  conversion to the
     Borrowing  (or portion  thereof)  being  converted;  accrued  interest on a
     Borrowing  (or  portion  thereof)  being  converted  shall  be  paid by the
     Borrower at the time of conversion;

               (c) any LIBOR  Borrowing may be converted  only at the end of the
     Interest Period applicable thereto;

               (d) any portion of a Borrowing  maturing or required to be repaid
     in less than one month may not be  converted  into or  continued as a LIBOR
     Borrowing;

               (e) any portion of a LIBOR Borrowing which cannot be continued as
     a  LIBOR  Borrowing  by  reason  of  clauses  (c) and (d)  above  shall  be
     automatically  converted  at the end of the  Interest  Period in effect for
     such Borrowing into a Base Rate Borrowing; and

               (f) each conversion or continuation  shall be made pro rata among
     the  Banks in  accordance  with the  respective  principal  amounts  of the
     converted or continued Borrowings.

          Each notice  pursuant to this Section shall be  irrevocable  and shall
     refer to this  Agreement  and  specify (i) the  identity  and amount of the
     Borrowing  that the  Borrower  requests be  converted  or  continued,  (ii)
     whether  such  Borrowing  is to be  converted  to or  continued  as a LIBOR
     Borrowing  or a Base  Rate  Borrowing,  (iii)  if such  notice  requests  a
     conversion,  the date of such  conversion  (which shall be a Business Day),
     and (iv) if such  Borrowing  is to be  converted to or continued as a LIBOR
     Borrowing,  the Interest Period with respect thereto. If no Interest Period
     is  specified  in any such  notice  with  respect to any  conversion  to or
     continuation  as a LIBOR  Borrowing,  the Borrower  shall be deemed to have
     selected an Interest  Period of one month's  duration.  The  Administrative
     Agent  shall  advise the other Banks of any notice  given  pursuant to this
     Section and of each Bank's portion of any converted or continued Borrowing.
     If the Borrower shall not have given notice in accordance with this Section
     to continue  any LIBOR  Borrowing  into a subsequent  Interest  Period (and
     shall not otherwise  have given notice in  accordance  with this Section to
     convert such  Borrowing),  such Borrowing shall, at the end of the Interest
     Period  applicable  thereto  (unless repaid  pursuant to the terms hereof),
     automatically be continued as a Base Rate Borrowing.

     2.2 The  reference to $2,500.00 in Section 2(iv) of Exhibit A to the Credit
Agreement is hereby amended to read $3,500.00.

                                        2

SECTION 3. OTHER MODIFICATIONS, RATIFICATIONS AND AGREEMENTS.

     3.1 All references to the Credit  Agreement in the other Loan Documents are
hereby amended to refer to the Credit Agreement as hereby amended.

     3.2 Borrower  hereby  reaffirms  to the Banks each of the  representations,
warranties,  covenants  and  agreements  of  Borrower  set  forth in the  Credit
Agreement,  with the same  force and  effect as if each were  separately  stated
herein and made as of the date hereof.

     3.3 Borrower hereby ratifies, reaffirms,  acknowledges, and agrees that the
Notes and the Credit  Agreement  represent  valid,  enforceable  and collectible
obligations  of  Borrower,  and that  there are no  existing  claims,  defenses,
personal or  otherwise,  or rights of setoff  whatsoever  with respect to any of
these documents or instruments.  Borrower  further  acknowledges  and represents
that no event has occurred and no condition  exists that,  after notice or lapse
of time, or both, would constitute a default under this Agreement,  the Notes or
the Credit Agreement.

     3.4 All  terms,  conditions  and  provisions  of the Credit  Agreement  are
continued in full force and effect and shall  remain  unaffected  and  unchanged
except as specifically amended hereby. The Credit Agreement,  as amended hereby,
is hereby  ratified  and  reaffirmed  by  Borrower,  and  Borrower  specifically
acknowledges the validity and enforceability thereof.

SECTION 4. GENERAL.

     4.1 This Agreement in no way acts as a release or  relinquishment  of those
rights  securing  payment  of  the  Loans.  Such  rights  are  hereby  ratified,
confirmed, renewed and extended by Borrower in all respects.

     4.2 The modifications  contained herein shall not be binding upon the Banks
until the Administrative Agent shall have received all of the following:

          (a) An original of this Agreement fully executed by the Borrower.

          (b) An executed consent from each Bank.

          (c) Such resolutions or authorizations and such other documents as the
     Administrative  Agent  may  require  relating  to the  existence  and  good
     standing of the Borrower and the  authority  of any person  executing  this
     Agreement or other documents on behalf of the Borrower.

     4.3 Borrower  shall  execute and deliver such  additional  documents and do
such  other acts as the Banks may  reasonably  require  to fully  implement  the
intent of this Agreement.

     4.4 Borrower shall pay all costs and expenses,  including,  but not limited
to,  reasonable   attorneys'  fees  incurred  by  the  Administrative  Agent  in
connection herewith, whether or not all of the conditions described in Paragraph

                                        3

4.2 above are satisfied.  Banks, at their option,  but without any obligation to
do so,  may  advance  funds  to pay any such  costs  and  expenses  that are the
obligation of the Borrower,  and all such funds  advanced shall bear interest at
the highest rate provided in the Notes and shall be due and payable upon demand.

     4.5  Notwithstanding  anything to the contrary  contained  herein or in any
other instrument executed by Borrower, the Administrative Agent or the Banks, or
in any other action or conduct undertaken by Borrower,  the Administrative Agent
or the  Banks on or  before  the date  hereof,  the  agreements,  covenants  and
provisions  contained  herein shall  constitute  the only evidence of the Banks'
consent to modify the terms and provisions of the Credit Agreement. Accordingly,
no express or implied consent to any further modifications  involving any of the
matters set forth in this Agreement or otherwise shall be inferred or implied by
the  Banks'  consent to this  Agreement.  Further,  the  Banks'  consent to this
Agreement  shall not  constitute  a waiver  (either  express or  implied) of the
requirement that any further  modification of the Credit Agreement shall require
the express  written  consent of the Banks;  no such consent  (either express or
implied) has been given as of the date hereof.

     4.6 Time is hereby  declared  to be of the  essence  hereof  of the  Credit
Agreement, and Banks require, and Borrower agrees to, strict performance of each
and every covenant,  condition,  provision and agreement  hereof,  of the Credit
Agreement.

     4.7 This  Agreement  shall be binding upon,  and shall inure to the benefit
of, the parties hereto and their heirs, personal representatives, successors and
assigns.

     4.8 This  Agreement  is made for the sole  protection  and  benefit  of the
parties  hereto,  and no other  person or entity  shall have any right of action
hereon.

     4.9 This Agreement shall be governed by and construed according to the laws
of the State of Arizona.

     IN WITNESS  WHEREOF,  these  presents are executed as of the date indicated
above.

                                        WELLS FARGO BANK, NATIONAL
                                        ASSOCIATION


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                            ADMINISTRATIVE AGENT

                                        4

                                        KNIGHT TRANSPORTATION, INC.


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------


                                        QUAD-K LEASING, INC., an Arizona
                                        corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                                        BORROWER

                                        5

                              CONSENT OF THE BANKS


Re:  Knight Transportation, Inc.

     The following:

          (a) is a Bank  named in that  Credit  Agreement  dated  April 6,  2001
between Knight Transportation, Inc., an Arizona corporation (the "Company"), all
present and future  Significant  Subsidiaries  of the Company (the  "Borrower"),
Wells Fargo Bank, National  Association,  as administrative  agent for the Banks
(the "Administrative Agent"), and the Banks; and

          (b) consents to that Modification Agreement dated June 5, 2001 entered
into between the Borrower and the Administrative Agent.


                                        THE NORTHERN TRUST COMPANY, an Illinois
                                        banking corporation


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                                          "Bank"

                              CONSENT OF THE BANKS


Re:  Knight Transportation, Inc.

     The following:

          (a) is a Bank  named in that  Credit  Agreement  dated  April 6,  2001
between Knight Transportation, Inc., an Arizona corporation (the "Company"), all
present and future  Significant  Subsidiaries  of the Company (the  "Borrower"),
Wells Fargo Bank, National  Association,  as administrative  agent for the Banks
(the "Administrative Agent"), and the Banks; and

          (b) consents to that Modification Agreement dated June 5, 2001 entered
into between the Borrower and the Administrative Agent.


                                        WELLS FARGO BANK, NATIONAL
                                        ASSOCIATION


                                        By:
                                           -------------------------------------
                                        Name:
                                             -----------------------------------
                                        Its:
                                            ------------------------------------

                                                                          "Bank"