EXHIBIT B







                              DIANON SYSTEMS, INC.


                            1999 STOCK INCENTIVE PLAN







                              DIANON SYSTEMS, INC.

                            1999 STOCK INCENTIVE PLAN


SECTION 1.        PURPOSES

            The purposes of the Dianon  Systems,  Inc. 1999 Stock Incentive Plan
(the "Plan") are (i) to enable  Dianon  Systems,  Inc. (the  "Company")  and its
Related Companies (as defined below) to attract, retain and reward employees and
strengthen  the existing  mutuality of interests  between such employees and the
Company's  stockholders  by offering  such  employees an equity  interest in the
Company,  and (ii) to enable the Company to pay part of the  compensation of its
Outside  Directors  (as  defined  in  Section  5.2) in the form of equity of the
Company,  thereby  increasing  such  directors'  proprietary  interests  in  the
Company.  For purposes of the Plan, a "Related  Company" means any  corporation,
partnership,  joint venture or other entity in which the Company owns,  directly
or indirectly,  at least a 20% beneficial ownership interest.  In addition,  for
purposes of this Plan,  the term "Stock"  shall refer to the common stock of the
Company, par value $.01 per share.

SECTION 2.       TYPES OF AWARDS

            2.1 Awards  under the Plan may be in the form of (i) Stock  Options;
(ii) Stock Appreciation Rights; (iii) Restricted Stock; (iv) Deferred Stock; (v)
Bonus Stock; (vi) Loans; and/or (vii) Tax Offset Payments.  One or more types of
awards may be granted,  which may be  independent  or granted in tandem.  If two
awards are  granted in tandem,  the award  holder  may  exercise  (or  otherwise
receive the benefit of) one award only to the extent he or she  relinquishes the
tandem award.

            2.2 Outside  Directors  shall receive Stock  Options,  Limited Stock
Appreciation  Rights and Stock  Grants as provided  in Section 15. In  addition,
Outside  Directors  may be  granted  discretionary  awards in one or more of the
forms set forth in Section 2.1.

SECTION 3.          ADMINISTRATION

            3.1 The Plan shall be administered (i) by the Compensation Committee
of the Company's  Board of Directors  (the  "Board") or such other  committee of
directors as the Board shall designate (the "Committee"), with respect to awards
to persons other than Outside  Directors,  and (ii) by the Board with respect to
awards to Outside  Directors  (except as provided in Section 4.5). The Committee
shall  consist  of not  less  than  two  directors  each of  whom is an  Outside
Director. The members of the Committee shall serve at the pleasure of the Board.

            3.2 For purposes of this Plan the term  "Granting  Authority"  shall
mean (i) the Board of  Directors  with  respect to awards to  Outside  Directors
(except as provided in Section 4.5),  and (ii) the Committee with respect to all
other awards.  The Granting  Authority  shall have the following  authority with
respect to awards under the Plan within its  jurisdiction:  to grant such awards
to persons  eligible to receive them under the Plan; to adopt,  alter and repeal
such  administrative  rules,  guidelines and practices  governing the Plan as it
shall deem advisable;  to interpret the terms and provisions of the Plan and any
award   granted  by  it  under  the  Plan;   and  to  otherwise   supervise  the
administration  of the Plan. In particular,  and without  limiting its authority
and powers,  the Granting Authority shall have the authority with respect to the
awards within its jurisdiction:

                  (a) to  determine  whether  and to what  extent  any  award or
      combination  of awards will be granted  hereunder,  including  whether any
      awards will be granted in tandem with each other;

                  (b) to select the eligible persons  to  whom  awards  will  be
      granted;

                  (c) to  determine  the  number  of  shares of the Stock of the
      Company  to be  covered by each  award  granted  hereunder  subject to the
      limitations contained herein;

                  (d) to determine the terms and conditions of any award granted
      hereunder,   including,   but  not   limited  to,  any  vesting  or  other
      restrictions  based  on  such  performance  objectives  (the  "Performance
      Objectives")  and  such  other  factors  as  the  Granting  Authority  may
      establish,  and to determine whether the Performance  Objectives and other
      terms and conditions of the award are satisfied;

                  (e) to  determine  the  treatment  of  awards  upon  an  award
      holder's  retirement,  disability,  death,  termination for cause or other
      termination of employment or service with the Company or Related Company;

                  (f) to determine  pursuant to a formula or otherwise  the fair
      market value of the Stock on a given date; provided,  however, that if the
      Granting  Authority fails to make such a determination,  fair market value
      of the Stock on a given  date shall be the  closing  sale price on a given
      date,  or if no such  sale of Stock  occurs  on such  date,  the  weighted
      average of the closing sale prices on the nearest trading dates before and
      after such date;

                  (g) to  determine  that  amounts  equal to the  amount  of any
      dividends  declared  with  respect to the  number of shares  covered by an
      award  (i) will be paid to the  award  holder  currently  or (ii)  will be
      deferred and deemed to be reinvested  or (iii) will  otherwise be credited
      to the award  holder,  or that the award holder has no rights with respect
      to such dividends;

                  (h) to  determine  whether,  to what  extent,  and under  what
      circumstances  Stock and other  amounts  payable  with respect to an award
      will be  deferred  either  automatically  or at the  election  of an award
      holder,  including  providing for and  determining  the amount (if any) of
      deemed earnings on any deferred amount during any deferral period;

                  (i) to provide  that the shares of Stock  received as a result
      of an award  shall be subject  to a right of first  refusal,  pursuant  to
      which the award  holder  shall be  required  to offer to the  Company  any
      shares  that the award  holder  wishes to sell,  subject to such terms and
      conditions as the Granting Authority may specify;

                  (j) to amend the terms of any award  (including  those granted
      under Section 15), prospectively or retroactively; provided, however, that
      no amendment  shall  impair the rights of the award holder  without his or
      her written consent; and

                  (k) to  substitute  new Stock Options for  previously  granted
      Stock Options, or for options granted under other plans or agreements,  in
      each case  including  previously  granted  options  having  higher  option
      prices.

            3.3 The  Committee  shall  have the  right to  designate  awards  as
"Performance  Awards." Awards so designated shall be granted and administered in
a manner designed to preserve the  deductibility of the  compensation  resulting
from such awards in accordance with Section 162(m) of the Internal  Revenue Code
(the "Code").  The grant or vesting of a  Performance  Award shall be subject to
the achievement of Performance  Objectives established by the Committee based on
one or more of the following criteria,  in each case applied to the Company on a
consolidated  basis and/or to a business unit and which the Committee may use as
an absolute measure, as a measure of improvement  relative to prior performance,
or as a measure of comparable performance relative to a peer group of companies:
sales,  operating profits,  operating profits before interest expense and taxes,
net earnings,  earnings per share, return on equity, return on assets, return on
invested  capital,  total shareholder  return,  cash flow, debt to equity ratio,
market share, stock price, economic value added, and market value added.

            The  Performance  Objectives  for  a  particular  Performance  Award
relative to a particular  fiscal year shall be  established  by the Committee in
writing no later than 90 days after the beginning of such year. The  Committee's
determination  as to the  achievement  of Performance  Objectives  relating to a
Performance Award shall be made in writing.  The Committee shall have discretion
to modify the  Performance  Objectives  or vesting  conditions  of a Performance
Award only to the extent that the  exercise of such  discretion  would not cause
the  Performance  Award to fail to qualify as  "performance-based  compensation"
within the meaning of Section 162(m) of the Code.

            3.4 All  determinations  made by the Granting  Authority pursuant to
the provisions of the Plan shall be final and binding on all persons,  including
the Company and Plan participants.

            3.5 The  Committee  may from  time to time  delegate  to one or more
officers of the Company any or all of its authorities  granted  hereunder except
with  respect  to  awards  granted  to  persons  subject  to  Section  16 of the
Securities  Exchange Act of 1934 or  Performance  Awards.  The  Committee  shall
specify the  maximum  number of shares that the officer or officers to whom such
authority is delegated may award.

            3.6 All awards granted under this Plan shall be evidenced by a grant
certificate  and the terms and  conditions  of the award shall be set forth in a
written agreement between the Company and the award recipient.

SECTION 4.       STOCK SUBJECT TO PLAN

            4.1 The total  number of shares  of Stock  which may be  awarded  or
issued  pursuant to the  exercise of an award  granted  under this Plan shall be
300,000, of which 270,000 shall be used for awards to employees and 30,000 shall
be used for awards to Outside  Directors  (all subject to adjustment as provided
below).  Such shares may consist of authorized  but unissued  shares or treasury
shares.  The exercise of a Stock  Appreciation  Right for cash or the payment of
any other award in cash shall not count against this share limit.

            4.2 To the extent a Stock  Option  terminates  without  having  been
exercised,  or an award  terminates  without the award  holder  having  received
payment of the award,  or shares  awarded are  forfeited,  the shares subject to
such award shall again be available for  distribution  in connection with future
awards under the Plan. Shares of Stock equal in number to the shares surrendered
in payment of the option price,  and shares of Stock which are withheld in order
to satisfy federal, state or local tax liabilities,  shall not count against the
above limit, and shall again be available for grants under the Plan.

            4.3  (a)  No  employee  shall  be  granted  Stock   Options,   Stock
Appreciation  Rights,  Restricted Stock,  Deferred Stock, and/or Bonus Stock, or
any  combination  of the  foregoing  with respect to more than 40,000  shares of
Stock in any fiscal year  (subject to adjustment as provided in Section 4.5). No
employee  shall be granted a Tax Offset  Payment in any fiscal year with respect
to more than the  number of shares of Stock  covered  by awards  granted to such
employee in such fiscal year.

                 (b) For purposes of Section 162(m) of the Code, no key employee
shall be granted Stock Options or Stock Appreciation Rights with respect to more
than  40,000  shares of Stock in any  fiscal  year  (subject  to  adjustment  as
provided in Section 4.5).

            4.4 The maximum  number of shares of Stock that may be issued  under
this Plan  pursuant to the exercise of Options  intended to be  Incentive  Stock
Options shall be 270,000 shares.

            4.5 In the event of any merger, reorganization,  consolidation, sale
of  substantially  all assets,  recapitalization,  stock dividend,  stock split,
spin-oft split-up, split-off distribution of assets or other change in corporate
structure  affecting  the  Stock,  a  substitution  or  adjustment,  as  may  be
determined to be appropriate by the Committee in its sole  discretion,  shall be
made in the aggregate number of shares reserved for issuance under the Plan, the
number of shares as to which  awards  may be granted  to any  individual  in any
calendar year,  the number and type of shares subject to outstanding  awards and
the amounts to be paid by award holders or the Company, as the case may be, with
respect to outstanding awards; provided,  however, that no such adjustment shall
increase the aggregate value of any  outstanding  award. In the event any change
described  in this  Section 4.5 occurs,  the  Committee  shall make  appropriate
adjustment  in the  awards  previously  granted  and to be  granted  to  Outside
Directors under the Plan;  provided that no such  adjustment  shall increase the
aggregate value of any outstanding award.

SECTION 5.       ELIGIBILITY

            5.1 Key employees of the Company or a Related Company, including key
employees who are officers and/or  directors of the Company,  are eligible to be
granted awards under the Plan,  other than under Section 15.  Employees shall be
selected for  participation  in the Plan from time to time by the Committee,  in
its sole discretion,  from among those key employees  eligible to participate in
this Plan.

            5.2 Awards  under  Section  15 of the Plan  shall be made  solely to
Outside Directors,  which term shall mean any director of the Company other than
one who is an employee of the Company or a Related  Company.  The Board,  in its
discretion,  may also grant  other  awards  under the Plan in one or more of the
forms set forth in Section 2.1 to one or more Outside Directors.

SECTION 6.       STOCK OPTIONS

            The Stock Options  awarded  under the Plan may be of two types:  (i)
Incentive  Stock  Options  within the  meaning of Section 422 of the Code or any
successor  provision thereto (which may be granted only to employees);  and (ii)
Non-Qualified  Stock  Options.  To the  extent  that any Stock  Option  does not
qualify as an Incentive Stock Option, it shall constitute a Non-Qualified  Stock
Option.

            Subject to the following provisions, Stock Options awarded under the
Plan  shall be in such form and  shall  have such  terms and  conditions  as the
Granting Authority may determine:

                  (a) OPTION  PRICE.   The  option  price  per  share  of  Stock
      purchasable  under a Stock  Option  shall be  determined  by the  Granting
      Authority,  and may be less than the fair market value of the Stock on the
      date of the award of the Stock Option.

                  (b) OPTION TERM.  The term of each Stock Option shall be fixed
      by the Granting Authority.

                  (c) EXERCISABILITY. Stock Options shall be exercisable at such
      time or  times  and  subject  to such  terms  and  conditions  as shall be
      determined  by the Granting  Authority.  The Granting  Authority may waive
      such exercise  provisions or accelerate  the  exercisability  of the Stock
      Option at any time in whole or in part.

                  (d) METHOD OF  EXERCISE.  Stock  Options may be  exercised  in
      whole or in part at any time  during the option  period by giving  written
      notice of exercise to the  Company  specifying  the number of shares to be
      purchased,  accompanied by payment of the purchase  price.  Payment of the
      purchase price shall be made in such manner as the Granting  Authority may
      provide in the award, which may include cash (including cash equivalents),
      delivery of shares of Stock already owned by the optionee for at least six
      months,  "cashless  exercise"  (which may be either (i) a  broker-assisted
      cash exercise  effected in  accordance  with rules adopted by the Granting
      Authority or (ii) a direction to the Company to withhold  shares of Stock,
      otherwise  deliverable  to the option  holder with  respect to the Option,
      having a fair  market  value on the date of  exercise  equal to the option
      price), or in any other manner permitted by law determined by the Granting
      Authority,  or any combination of the foregoing. If the Granting Authority
      determines that a Stock Option may be exercised using shares of Restricted
      Stock, then unless the Granting Authority provides  otherwise,  the shares
      received  upon the  exercise  of a Stock  Option  which are paid for using
      Restricted Stock shall be restricted in accordance with the original terms
      of the Restricted Stock award.

                  (e) NO  STOCKHOLDER  RIGHTS.  An optionee  shall have  neither
      rights to  dividends  or other  rights of a  stockholder  with  respect to
      shares  subject to a Stock Option  until the  optionee  has given  written
      notice of exercise and has paid for such shares.

                  (f) SURRENDER RIGHTS.  The Granting Authority may provide that
      options may be  surrendered  for cash upon any terms and conditions set by
      the Granting Authority.

                  (g)  NON-TRANSFERABILITY.  Unless  otherwise  provided  by the
      Granting  Authority,  (i) Stock Options shall not be  transferable  by the
      optionee  other than by will or by the laws of descent  and  distribution,
      and (ii)  during  the  optionee's  lifetime,  all Stock  Options  shall be
      exercisable  only by the  optionee  or,  in the  event  of the  optionee's
      disability, by his or her guardian or legal representative.

                  (h)  TERMINATION OF SERVICE.  Following the  termination of an
      optionee's service with the Company or a Related Company, the Stock Option
      shall be exercisable to the extent  determined by the Granting  Authority.
      The Granting  Authority may provide  different  post-termination  exercise
      provisions  with respect to termination of service for different  reasons.
      The Granting Authority may provide that,  notwithstanding  the option term
      fixed pursuant to Section  6.2(b),  a Stock Option which is outstanding on
      the date of an optionee's death shall remain outstanding for an additional
      period after the date of such death.

            6.3  Notwithstanding  the  provisions  of Section  6.2, no Incentive
Stock  Option shall (i) have an option price which is less than 100% of the fair
market  value  of the  Stock on the date of the  award  of the  Incentive  Stock
Option,  (ii) be  exercisable  more than ten years after the date such Incentive
Stock  Option is  awarded,  or (iii) be  awarded  more than ten years  after the
effective  date of the Plan  specified in Section 19. No Incentive  Stock Option
granted to an employee who owns more than 10% of the total combined voting power
of all  classes  of stock of the  Company  or any of its  parent  or  subsidiary
corporations,  as defined in Section  424 of the Code,  shall (A) have an option
price which is less than 110% of the fair market  value of the Stock on the date
of award of the  Incentive  Stock  Option or (B) be  exercisable  more than five
years after the date such Incentive Stock Option is awarded.

            6.4 A Stock Option  granted to a key  employee  under this Plan will
not be  considered  an  Incentive  Stock  Option to the  extent  that such Stock
Option,  together with any earlier Stock Option  granted to such employee  under
this or any other plan of the Company that is intended to be an Incentive  Stock
Option,  permits the exercise for the first time in any calendar  year of shares
of Stock  having a fair market  value in excess of $100,000  (determined  at the
time of grant).

SECTION 7.       STOCK APPRECIATION RIGHTS

            7.1 A Stock  Appreciation  Right shall entitle the holder thereof to
receive payment of an amount, in cash, shares of Stock or a combination thereof,
as  determined  by the Granting  Authority,  equal in value to the excess of the
fair  market  value of the  number  of  shares of Stock as to which the award is
granted  on the  date of  exercise  over an  amount  specified  by the  Granting
Authority.  Any such  award  shall be in such form and shall have such terms and
conditions as the Granting Authority may determine.  The grant shall specify the
number of shares of Stock as to which the Stock Appreciation Right is granted.

            7.2 The Granting  Authority  may provide  that a Stock  Appreciation
Right may be exercised only within the 60-day period  following  occurrence of a
Change of Control (as defined in Section  17.2) (such Stock  Appreciation  Right
being referred to herein as a Limited Stock  Appreciation  Right).  The Granting
Authority  may also  provide that in the event of a Change of Control the amount
to be paid upon  exercise  of a Stock  Appreciation  Right shall be based on the
Change of Control Price (as defined in Section 17.3).

SECTION 8.       RESTRICTED STOCK

            Subject to the following provisions,  all awards of Restricted Stock
shall be in such form and shall have such terms and  conditions  as the Granting
Authority may determine:

                  (a) The  Restricted  Stock award  shall  specify the number of
      shares of Restricted Stock to be awarded, the price, if any, to be paid by
      the recipient of the Restricted  Stock and the date or dates on which,  or
      the conditions upon the  satisfaction  of which,  the  restrictions  shall
      lapse and the Restricted  Stock will vest. The grant and/or the vesting of
      Restricted  Stock may be  conditioned  upon the  completion of a specified
      period  of  service  with  the  Company  or a  Related  Company,  upon the
      attainment of specified Performance Objectives or upon such other criteria
      as the Granting Authority may determine.

                  (b)  Stock  certificates  representing  the  Restricted  Stock
      awarded under the Plan shall be registered in the award holder's name, but
      the Granting  Authority may direct that such  certificates  be held by the
      Company on behalf of the award  holder.  Except as may be permitted by the
      Granting Authority, no share of Restricted Stock may be sold, transferred,
      assigned,  pledged or otherwise  encumbered by the award holder until such
      share has  vested in  accordance  with the terms of the  Restricted  Stock
      award. At the time  Restricted  Stock vests, a certificate for such vested
      shares shall be  delivered  to the award holder (or his or her  designated
      beneficiary in the event of death), free of all restrictions.

                  (c) The Granting  Authority  may provide that the award holder
      shall have the right to vote or receive  dividends  on  Restricted  Stock.
      Unless the Granting  Authority  provides  otherwise,  Stock  received as a
      dividend  on, or in  connection  with a stock split of,  Restricted  Stock
      shall be subject to the same restrictions as the Restricted Stock.

                  (d) Except as may be provided by the  Granting  Authority,  in
      the event of an award holder's termination of service before all of his or
      her  Restricted  Stock has vested,  or in the event any  conditions to the
      vesting of Restricted  Stock have not been satisfied prior to any deadline
      for the satisfaction of such conditions set forth in the award, the shares
      of  Restricted  Stock which have not vested  shall be  forfeited,  and the
      Granting  Authority  may provide that (i) any  purchase  price paid by the
      award  holder shall be returned to the award holder or (ii) a cash payment
      equal  to  the  Restricted  Stock's  fair  market  value  on the  date  of
      forfeiture, if lower, shall be paid to the award holder.

                  (f) The Granting Authority may waive, in whole or in part, any
      or all of the conditions to receipt of, or  restrictions  with respect to,
      any or all of the award holder's  Restricted Stock, other than Performance
      Awards  whose  vesting  was made  subject to  satisfaction  of one or more
      Performance  Objectives (except that the Committee may waive conditions or
      restrictions  with respect to Performance  Awards if such waiver would not
      cause  the  Performance  Award to fail to  qualify  as  "performance-based
      compensation" within the meaning of Section 162(m) of the Code).

SECTION 9.       DEFERRED STOCK AWARDS

            Subject to the following  provisions,  all awards of Deferred  Stock
shall be in such form and shall have such terms and  conditions  as the Granting
Authority may determine:

                  (a) The  Deferred  Stock  award  shall  specify  the number of
      shares of Deferred Stock to be awarded and the duration of the period (the
      "Deferral  Period") during which, and the conditions under which,  receipt
      of the Stock will be deferred.  The Granting  Authority  may condition the
      grant or vesting of Deferred Stock, or receipt of Stock or cash at the end
      of the Deferral  Period,  upon the  attainment  of  specified  Performance
      Objectives or such other criteria as the Granting Authority may determine.

                  (b)  Except  as may be  provided  by the  Granting  Authority,
      Deferred Stock awards may not be sold, assigned,  transferred,  pledged or
      otherwise encumbered during the Deferral Period.

                  (c) At the expiration of the Deferral Period, the award holder
      (or his or her designated beneficiary in the event of death) shall receive
      (i)  certificates for the number of shares of Stock equal to the number of
      shares  covered by the Deferred  Stock award,  (ii) cash equal to the fair
      market value of such Stock,  or (iii) a combination of shares and cash, as
      the Granting Authority may determine.

                  (d) Except as may be provided by the  Granting  Authority,  in
      the event of an award holder's  termination of service before the Deferred
      Stock has vested, his or her Deferred Stock award shall be forfeited.

                  (e) The Granting Authority may waive, in whole or in part, any
      or all of the conditions to receipt of, or  restrictions  with respect to,
      Stock or cash under a Deferred  Stock  award,  other than with  respect to
      Performance  Awards  (except that the  Committee  may waive  conditions or
      restrictions  with respect to Performance  Awards if such waiver would not
      cause the  Performance  Award to fail to  qualify  as  "performance  based
      compensation" within the meaning of Section 162(m) of the Code).

SECTION 10.      BONUS STOCK

            The Granting  Authority  may award Bonus Stock subject to such terms
and conditions as the Granting  Authority  shall  determine.  The grant of Bonus
Stock may be conditioned upon the attainment of specified Performance Objectives
or upon such  other  criteria  as the  Granting  Authority  may  determine.  The
Granting Authority may waive such conditions in whole or in part other than with
respect to Performance Awards (except that the Committee may waive conditions or
restrictions  with respect to Performance  Awards if such waiver would not cause
the  Performance  Award to fail to qualify as  "performance-based  compensation"
within the  meaning of Section  162(m) of the Code).  In making a  determination
with respect to the terms and  conditions  of a Bonus Stock award,  the Granting
Authority  shall also have the right to  eliminate or reduce the amount of Bonus
Stock  otherwise  payable  under an award.  Unless  otherwise  specified  by the
Granting Authority, no money shall be paid by the recipient for the Bonus Stock.
Alternatively, the Granting Authority may offer the award holder the opportunity
to purchase  Bonus Stock at a discount  from its fair  market  value.  The Bonus
Stock award shall be  satisfied  by the  delivery  of the  designated  number of
shares of Stock which are not subject to restriction.

SECTION 11.      LOANS

            The Granting  Authority  may provide that the Company shall make, or
arrange  for, a loan or loans with  respect to the  exercise of any Stock Option
awarded under the Plan,  with respect to the payment of the purchase  price,  if
any, of any  Restricted  Stock  awarded  hereunder  or with respect to any taxes
arising from an award hereunder;  provided,  however, that the Company shall not
loan more than the sum of (i) the excess of the purchase or exercise price of an
award over the par value of any shares of Stock  awarded plus (ii) the amount of
any taxes  arising  from such  award.  The  Granting  Authority  shall have full
authority to decide  whether a loan will be made  hereunder and to determine the
amount, term and provisions of any such loan,  including the interest rate to be
charged, whether the loan will be with or without recourse against the borrower,
any security  for the loan,  the terms on which the loan is to be repaid and the
conditions, if any, under which the loan may be forgiven.

SECTION 12.      TAX OFFSET PAYMENTS

            The Granting  Authority may provide for a Tax Offset  Payment by the
Company  with  respect to one or more  awards  granted  under the Plan.  The Tax
Offset Payment shall be in an amount specified by the Granting Authority,  which
shall not exceed the amount necessary to pay the federal, state, local and other
taxes  payable with respect to the  applicable  award and the receipt of the Tax
Offset Payment,  assuming that the award holder is taxed at the maximum tax rate
applicable to such income. The Tax Offset Payment shall be paid solely in cash.

SECTION 13.      ELECTION TO DEFER AWARDS

            The Granting Authority may permit an employee or Outside Director to
elect to defer receipt of an award (other than an award  pursuant to Section 15)
for a  specified  period or until a  specified  event,  upon  such  terms as are
determined by the Granting Authority.

SECTION 14.      TAX WITHHOLDING

            14.1 Each  employee  shall,  no later  than the date as of which the
value of an award first becomes  includible  in such  person's  gross income for
applicable tax purposes,  pay to the Company, or make arrangements  satisfactory
to the Committee regarding payment of, any federal,  state, local or other taxes
of any kind  required  by law to be  withheld  with  respect to the  award.  The
obligations  of the Company under the Plan shall be  conditional on such payment
or arrangements,  and the Company (and, where applicable,  any Related Company),
shall,  to the extent  permitted by law, have the right to deduct any such taxes
from any payment of any kind otherwise due to the employee.

            14.2 To the extent  permitted by the Committee,  and subject to such
terms and conditions as the Committee may provide, an employee may elect to have
the withholding tax obligation, or any additional tax obligation with respect to
any awards  hereunder,  satisfied by (i) having the Company  withhold  shares of
Stock  otherwise  deliverable  to such person with  respect to the award or (ii)
delivering to the Company shares of unrestricted  Stock  previously owned by the
person for at least six months.

SECTION 15.      AUTOMATIC STOCK OPTIONS,  LIMITED STOCK APPRECIATION RIGHTS AND
                 STOCK GRANTS FOR OUTSIDE DIRECTORS

            15.1 Outside Directors shall be granted Stock Options as follows:

                  (a) INITIAL GRANT.  Each person who is an Outside  Director on
      the date of  adoption  of the Plan by the Board  shall be  granted on such
      date a Stock  Option  to  purchase  the  number  of whole  shares of Stock
      obtained by dividing $5,000 by the closing sales price of the Stock on the
      date of grant. Each person who becomes an Outside Director after such date
      shall be granted,  on the first trading day coincident with or immediately
      following  the  effective  date  of  his  or her  election  as an  Outside
      Director,  a Stock  Option to purchase the number of whole shares of Stock
      obtained by dividing $5,000 by the closing sales price of the Stock on the
      date of grant.

                  (b)  QUARTERLY  GRANTS.  On the  first  trading  day  of  each
      calendar  quarter  beginning with October 1, 1999,  each Outside  Director
      then  serving  on the Board and who has served for all or a portion of the
      previous  calendar quarter shall be granted a Stock Option to purchase the
      number of whole shares of Stock obtained by dividing $5,000 by the closing
      sales price of the Stock on the date of grant.

                  (c) For  purposes of this Section  15.1,  the term trading day
      shall  mean a day on which the Stock is  traded on a  national  securities
      exchange,  on the  Nasdaq  National  Market,  or in  the  over-the-counter
      market.

                  (d)  Notwithstanding  the  foregoing,  if on any date on which
      Stock  Options are to be granted  under this  Section  15.1 the  remaining
      shares  available  for  issuance to Outside  Directors  under the Plan are
      insufficient to enable each Outside  Director to receive a Stock Option to
      purchase the  applicable  number of shares of Stock set forth above,  each
      Outside  Director who is entitled to be granted a Stock Option pursuant to
      this Section 15.1 on such date shall be granted a Stock Option to purchase
      his or her pro-rata portion of such remaining shares.

            Stock Options  granted under this Section 15 shall be  Non-Qualified
Stock Options, and shall have the following terms and conditions:

                  (a)  OPTION  PRICE.  The  option  price  per  share  of  Stock
      purchasable  under the Stock  Option  shall be equal to the closing  sales
      price of the Stock on the date the Stock Option is granted.

                  (b) TERM OF OPTION.  The term of the Stock Option shall be ten
      years from the date of grant,  subject to earlier termination in the event
      of  termination  of service as a director,  as set forth in paragraphs (e)
      and (f) below.

                  (c) EXERCISABILITY. Subject to paragraph (f) below, each Stock
      Option shall  become  exercisable  with  respect to 10% of the  underlying
      shares on the date which is three months  after the date of grant,  and an
      additional 10% at the end of each three-month period thereafter,  less any
      shares that have been exercised prior to each such date, provided that the
      optionee is a director of the Company on such date.  The minimum number of
      shares with respect to which a Stock Option may be exercised is the lesser
      of 100 shares or the number of shares then subject to the Stock Option.

                  (d) METHOD OF EXERCISE.  The Stock Options may be exercised in
      whole or in part at any time  during the option  period by giving  written
      notice of exercise to the  Company  specifying  the number of shares to be
      purchased,  accompanied by payment of the purchase  price.  Payment of the
      purchase price shall be made in cash  (including  cash  equivalents) or by
      delivery of shares of Stock already owned by the optionee for at least six
      months,  or by any  combination  of the foregoing.  Shares  delivered upon
      payment of the  exercise  price shall be valued at the average of the high
      and low sale prices of the Stock on the date of exercise (or, if the Stock
      is not traded on such date,  at the  weighted  average of the high and low
      prices on the nearest trading dates before and after such date).

                  (e)  TERMINATION  OF SERVICE  AS  DIRECTOR.  If an  optionee's
      service as a director is terminated for any reason,  such director's Stock
      Options may be exercised  for five years  following  such  termination  of
      service  (but not  beyond the Option  term),  but only to the extent  such
      Options were vested on the date of termination of service.

                  (f) Change of Control.  Notwithstanding any other provision of
      the Plan,  upon the  occurrence  of a Change of  Control  (as  defined  in
      Section 17.2), all Stock Options outstanding at the time of such Change of
      Control shall become  immediately  vested and exercisable and shall remain
      exercisable  for five years after the  director's  termination  of service
      (but not beyond the option term).

                  (g) Non-transferability. No Stock Option shall be transferable
      by the  optionee  other  than  by  will  or by the  laws  of  descent  and
      distribution.  During an optionee's  lifetime,  all Stock Options shall be
      exercisable  only by the  optionee  or,  in the  event  of the  optionee's
      disability, by his or her guardian or legal representative.

                  (h) Shareholder Rights. The holder of a Stock Option shall, as
      such, have none of the rights of a shareholder.

            15.3 Limited Stock Appreciation Rights in Tandem with Options.  Each
Stock  Option  granted to an  Outside  Director  under this  Section 15 shall be
granted in tandem with a Limited Stock Appreciation Right which may be exercised
only within the 60-day  period  following a Change of Control.  Upon exercise of
the Limited Stock Appreciation  Right, the holder shall receive,  for each share
with respect to which the Limited  Stock  Appreciation  Right is  exercised,  an
amount  equal in value to the excess of the Change of Control  Price (as defined
in Section  17.3) over the  exercise  price of the  related  Stock  Option.  The
Limited Stock  Appreciation  Right shall be payable solely in cash, and shall be
paid within 30 days of the  exercise of the Limited  Stock  Appreciation  Right.
Upon the  exercise of the Limited  Stock  Appreciation  Right,  the Stock Option
granted in tandem with such Right shall expire.

            15.4  Quarterly  Stock  Grants.  On the  first  trading  day of each
calendar  quarter  beginning with the first  calendar  quarter after the date of
shareholder  approval of the Plan,  each  Outside  Director  then serving on the
Board and who has served for all or a portion of the previous  calendar  quarter
shall be granted the number of whole shares of Stock obtained by dividing $2,000
by the closing  sales  price of the Stock on the date of grant.  Notwithstanding
the foregoing, if on any date on which shares are to be granted pursuant to this
Section 15.4 the  remaining  shares  reserved for issuance to Outside  Directors
under the Plan are  insufficient to enable each Outside  Director to receive the
applicable  number of shares of Stock set forth above, each Outside Director who
is entitled to be granted shares  pursuant to this Section 15.4 shall be granted
his or her pro rata portion of such remaining  shares.  All shares granted under
this  Section  15.4  shall be fully  vested and  non-forfeitable  at the time of
grant.

SECTION 16.      AMENDMENTS AND TERMINATION

            The Board may discontinue the Plan at any time and may amend it from
time to time. No amendment or discontinuation of the Plan shall adversely affect
any award  previously  granted  without  the  award  holder's  written  consent.
Amendments  may be made  without  stockholder  approval  except as  required  to
satisfy  Section 422 of the Code,  Section  162(m) of the Code, or other NASDAQ,
stock exchange, or regulatory requirements.

SECTION 17.      CHANGE OF CONTROL

            17.1  In  the  event  of  a  Change  of  Control,  unless  otherwise
determined by the Granting  Authority at the time of grant or by amendment (with
the award holder's consent) of such grant:

                  (a) all outstanding  Stock Options and all  outstanding  Stock
      Appreciation Rights (including Limited Stock Appreciation  Rights) awarded
      under the Plan shall become fully exercisable and vested;

                  (b) the  restrictions and deferral  limitations  applicable to
      any outstanding  Restricted Stock and Deferred Stock awards under the Plan
      shall lapse and such shares and awards shall be deemed fully vested; and

                  (c) to the  extent  the cash  payment of any award is based on
      the fair market value of Stock, such fair market value shall be the Change
      of Control Price.

            17.2 A "Change of Control" shall be deemed to occur on:

                  (a) the date that any  person or group  deemed a person  under
      Sections  3(a)(9) and  13(d)(3)  of the  Securities  Exchange  Act of 1934
      (other than the Company and its  subsidiaries  as  determined  immediately
      prior  to  that  date)  has  become  the  beneficial  owner,  directly  or
      indirectly  (with  beneficial  ownership  determined  as  provided in rule
      13d-3, or any successor rule,  under the Securities  Exchange Act of 1934)
      of  securities  of the  Company  representing  25% or  more  of the  total
      combined  voting  power of all classes of stock of the Company  having the
      right under  ordinary  circumstances  to vote at an election of the Board,
      unless such person has  acquired 80% or more of such  securities  directly
      from the Company;

                  (b) the date on which  one-third or more of the members of the
      Board shall  consist of persons  other than Current  Directors  (for these
      purposes a "Current Director" shall mean any member of the Board on August
      31, 1999 and any member of the Board whose nomination or election has been
      approved by a majority of the Current Directors then on the Board);

                  (c) the date of approval by the stockholders of the Company of
      an agreement providing for the merger or consolidation of the Company with
      another corporation where (i) the stockholders of the Company, immediately
      prior  to  the  merger  or  consolidation,  would  not  beneficially  own,
      immediately  after the  merger or  consolidation,  shares  entitling  such
      stockholders  to 50% or more of all votes  (without  consideration  of the
      rights of any class of stock to elect  directors by a separate class vote)
      to which all stockholders of the corporation issuing cash or securities in
      the  merger  or  consolidation  would  be  entitled  in  the  election  of
      directors,  or (ii) where the members of the Board,  immediately  prior to
      the merger or  consolidation,  would not,  immediately after the merger or
      consolidation,  constitute  a majority  of the board of  directors  of the
      corporation issuing cash or securities in the merger; or

                  (d) the date of approval by the stockholders of the Company of
      an  agreement  providing  for the  sale  or  other  disposition  of all or
      substantially all of the assets of the Company.

             17.3 "Change of Control  Price"  means the highest  price per share
paid  in any  transaction  reported  in the  Nasdaq  National  Market  or on any
national  securities  exchange where the Stock is traded,  or paid or offered in
any  transaction  related to a Change of  Control at any time  during the 90-day
period  ending  with  the  Change  of  Control.  Notwithstanding  the  foregoing
sentence,  in the case of Stock  Appreciation  Rights  granted  in  tandem  with
Incentive Stock Options,  the Change of Control Price shall be the highest price
paid on the date on which the Stock Appreciation Right is exercised.

SECTION 18.      GENERAL PROVISIONS

            18.1 Each award  under the Plan shall be subject to the  requirement
that,  if at any  time  the  Granting  Authority  shall  determine  that (i) the
listing,  registration or  qualification of the Stock subject or related thereto
upon any  securities  exchange  or under any state or federal  law,  or (ii) the
consent or approval of any government  regulatory  body or (iii) an agreement by
the recipient of an award with respect to the  disposition of Stock is necessary
or desirable  (in  connection  with any  requirement  or  interpretation  of any
federal or state  securities  law, rule or  regulation) as a condition of, or in
connection  with,  the  granting  of such  award or the  issuance,  purchase  or
delivery of Stock thereunder,  such award shall not be granted or exercised,  in
whole or in part,  unless such listing,  registration,  qualification,  consent,
approval  or  agreement  shall  have  been  effected  or  obtained  free  of any
conditions not acceptable to the Granting Authority.

            18.2  Nothing  set forth in this Plan shall  prevent  the Board from
adopting other or additional compensation arrangements.  Neither the adoption of
the Plan nor any award  hereunder shall confer upon any employee of the Company,
or of a Related Company, any right to continued  employment,  and no award shall
confer upon any Outside Director any right to continued service as a director.

            18.3  Determinations  by  the  Granting  Authority  under  the  Plan
relating to the form,  amount,  and terms and  conditions  of awards need not be
uniform,  and may be made selectively  among persons who receive or are eligible
to receive  awards  under the Plan,  whether or not such  persons are  similarly
situated.

            18.4 No member of the Board or the  Committee,  nor any  officer  or
employee of the Company acting on behalf of the Board or the Committee, shall be
personally liable for any action,  determination or interpretation taken or made
with respect to the Plan,  and all members of the Board or the Committee and all
officers or employees of the Company acting on their behalf shall, to the extent
permitted by law, be fully  indemnified  and protected by the Company in respect
of any such action, determination or interpretation.

SECTION 19.      EFFECTIVE DATE OF PLAN

            The Plan was adopted by the  Company's  Board of Directors on August
31, 1999, and shall be effective as of such date, subject to the approval of the
Plan by the Company's stockholders at the 1999 Annual Meeting of Stockholders.