Executed Copy

                                                                   Exhibit 4.14




                                  A/B EXCHANGE
                          REGISTRATION RIGHTS AGREEMENT






                           Dated as of August 17, 1999
                                  by and among


                         CONCENTRA OPERATING CORPORATION

                           THE GUARANTORS NAMED HEREIN

                                       and

               DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION
                              CHASE SECURITIES INC.
                     CREDIT SUISSE FIRST BOSTON CORPORATION
                          DEUTSCHE BANK SECURITIES INC.
                             FLEET SECURITIES, INC.






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


         This Registration Rights Agreement (this "AGREEMENT") is made and
entered into as of August 17, 1999, by and among CONCENTRA OPERATING
CORPORATION, a Nevada corporation (the "COMPANY"), the Guarantors set forth on
the signature page hereof, (the "GUARANTORS"), and Donaldson, Lufkin & Jenrette
Securities Corporation, Chase Securities Inc., Credit Suisse First Boston
Corporation, Deutsche Bank Securities Inc., and Fleet Securities, Inc. (each an
"INITIAL PURCHASER" and, collectively, the "INITIAL PURCHASERS"), each of whom
has agreed to purchase the Company's 13% Series A Senior Subordinated Notes due
2009 (the "SERIES A NOTES") pursuant to the Purchase Agreement (as defined
below).

         This Agreement is made pursuant to the Purchase Agreement, dated as of
August 5, 1999, (the "PURCHASE AGREEMENT"), by and among the Company, the
Guarantors and the Initial Purchasers. In order to induce the Initial Purchasers
to purchase the Series A Notes, the Company has agreed to provide the
registration rights set forth in this Agreement. The execution and delivery of
this Agreement is a condition to the obligations of the Initial Purchasers set
forth in Section 3 of the Purchase Agreement. Capitalized terms used herein and
not otherwise defined shall have the meaning assigned to them in the Indenture,
dated as of August 17, 1999, between the Company and United States Trust Company
of New York, as Trustee ("TRUSTEE"), relating to the Series A Notes and the
Series B Notes (the "INDENTURE").

         The parties hereby agree as follows:

SECTION 1.      DEFINITIONS

         As used in this Agreement, the following capitalized terms shall have
the following meanings:

         ACT:  The Securities Act of 1933, as amended.

         AFFILIATE:  As defined in Rule 144 of the Act.

         BROKER-DEALER: Any broker or dealer registered under the Exchange Act.

         CERTIFICATED SECURITIES: Definitive Notes, as defined in the Indenture.

         CLOSING DATE:  The date hereof.

         COMMISSION:  The Securities and Exchange Commission.

         CONSUMMATE: An Exchange Offer shall be deemed "Consummated" for
purposes of this Agreement upon the occurrence of (a) the filing and
effectiveness under the Act of the Exchange Offer Registration Statement
relating to the Series B Notes to be issued in the Exchange Offer, (b) the
maintenance of such Exchange Offer Registration Statement continuously effective
and the keeping of the Exchange Offer open for a period not less than the period
required pursuant to Section 3(b) hereof and (c) the delivery by the Company to
the Registrar under the Indenture of Series B Notes in the same aggregate
principal amount as the aggregate principal amount of Series A Notes tendered by
Holders thereof pursuant to the Exchange Offer.

         CONSUMMATION DEADLINE: As defined in Section 3(b) hereof.

         EFFECTIVENESS DEADLINE: As defined in Sections 3(a) and 4(a) hereof.

         EXCHANGE ACT: The Securities Exchange Act of 1934, as amended.


                                       2



         EXCHANGE OFFER: The exchange and issuance by the Company of a principal
amount of Series B Notes (which shall be registered pursuant to the Exchange
Offer Registration Statement) equal to the outstanding principal amount of
Series A Notes that are tendered by such Holders in connection with such
exchange and issuance.

         EXCHANGE OFFER REGISTRATION STATEMENT: The Registration Statement
relating to the Exchange Offer, including the related Prospectus.

         EXEMPT RESALES: The transactions in which the Initial Purchasers
propose to sell the Series A Notes to certain "qualified institutional buyers,"
as such term is defined in Rule 144A under the Act and pursuant to Regulation S
under the Act.

         FILING DEADLINE: As defined in Sections 3(a) and 4(a) hereof.

         HOLDERS: As defined in Section 2 hereof.

         PARTICIPATING BROKER-DEALER: As defined in Section 3.

         PROSPECTUS: The prospectus included in a Registration Statement at the
time such Registration Statement is declared effective, as amended or
supplemented by any prospectus supplement and by all other amendments thereto,
including post-effective amendments, and all material incorporated by reference
into such Prospectus.

         RECOMMENCEMENT DATE: As defined in Section 6(d) hereof.

         REGISTRATION DEFAULT: As defined in Section 5 hereof.

         REGISTRATION STATEMENT: Any registration statement of the Company and
the Guarantors relating to (a) an offering of Series B Notes pursuant to an
Exchange Offer or (b) the registration for resale of Transfer Restricted
Securities pursuant to the Shelf Registration Statement, in each case, (i) that
is filed pursuant to the provisions of this Agreement and (ii) including the
Prospectus included therein, all amendments and supplements thereto (including
post-effective amendments) and all exhibits and material incorporated by
reference therein.

         REGULATION S: Regulation S promulgated under the Act.

         RULE 144: Rule 144 promulgated under the Act.

     SERIES B NOTES:  The Company's 13% Series B Senior  Subordinated  Notes due
2009 to be issued  pursuant to the Indenture:  (i) in the Exchange Offer or (ii)
as contemplated by Section 4 hereof.

         SHELF REGISTRATION STATEMENT: As defined in Section 4 hereof.

         SUSPENSION NOTICE: As defined in Section 6(d) hereof.

         TIA: The Trust Indenture Act of 1939 (15 U.S.C. Section 77aaa-77bbbb)
as in effect on the date of the Indenture.

         TRANSFER RESTRICTED SECURITIES: Each Series A Note, until the earliest
to occur of (a) the date on which such Series A Note is exchanged in the
Exchange Offer for a Series B Note which is entitled to be

                                       3



resold to the public by the Holder thereof without complying with the prospectus
delivery requirements of the Act, (b) the date on which such Series A Note has
been disposed of in accordance with a Shelf Registration Statement (and the
purchasers thereof have been issued Series B Notes), or (c) the date on which
such Series A Note is distributed to the public pursuant to Rule 144 under the
Act (and purchasers thereof have been issued Series B Notes) and each Series B
Note until the date on which such Series B Note is disposed of by a
Broker-Dealer pursuant to the "Plan of Distribution" contemplated by the
Exchange Offer Registration Statement (including the delivery of the Prospectus
contained therein).

SECTION 2.     HOLDERS

         A Person is deemed to be a holder of Transfer Restricted Securities
(each, a "HOLDER") whenever such Person owns Transfer Restricted Securities.

SECTION 3.     REGISTERED EXCHANGE OFFER

         (a) Unless the Exchange Offer shall not be permitted by applicable
federal law (after the procedures set forth in Section 6(a)(i) below have been
complied with), the Company and the Guarantors shall (i) cause the Exchange
Offer Registration Statement to be filed with the Commission as soon as
practicable after the Closing Date, but in no event later than 90 days after the
Closing Date (such 90th day being the "FILING DEADLINE"), (ii) use its best
efforts to cause such Exchange Offer Registration Statement to become effective
at the earliest possible time, but in no event later than 180 days after the
Closing Date (such 180th day being the "EFFECTIVENESS DEADLINE"), (iii) in
connection with the foregoing, (A) file all pre-effective amendments to such
Exchange Offer Registration Statement as may be necessary in order to cause it
to become effective, (B) file, if applicable, a post-effective amendment to such
Exchange Offer Registration Statement pursuant to Rule 430A under the Act and
(C) cause all necessary filings, if any, in connection with the registration and
qualification of the Series B Notes to be made under the Blue Sky laws of such
jurisdictions as are necessary to permit Consummation of the Exchange Offer, and
(iv) upon the effectiveness of such Exchange Offer Registration Statement,
commence and Consummate the Exchange Offer. The Exchange Offer shall be on the
appropriate form permitting (i) registration of the Series B Notes to be offered
in exchange for the Series A Notes that are Transfer Restricted Securities and
(ii) resales of Series B Notes by Broker-Dealers that tendered into the Exchange
Offer Series A Notes that such Broker-Dealer acquired for its own account as a
result of market making activities or other trading activities (other than
Series A Notes acquired directly from the Company or any of its Affiliates) as
contemplated by Section 3(c) below.

         (b) The Company and the Guarantors shall use their respective best
efforts to cause the Exchange Offer Registration Statement to be effective
continuously, and shall keep the Exchange Offer open for a period of not less
than the minimum period required under applicable federal and state securities
laws to Consummate the Exchange Offer; PROVIDED, HOWEVER, that in no event shall
such period be less than 20 Business Days. The Company and the Guarantors shall
cause the Exchange Offer to comply in all material respects with all applicable
federal and state securities laws. No securities other than the Series B Notes
shall be included in the Exchange Offer Registration Statement. The Company and
the Guarantors shall use their respective best efforts to cause the Exchange
Offer to be Consummated on the earliest practicable date after the Exchange
Offer Registration Statement has become effective, but in no event later than 30
business days thereafter (such 30th day being the "CONSUMMATION DEADLINE").

         (c) The Company shall include a "Plan of Distribution" section in the
Prospectus contained in the Exchange Offer Registration Statement and indicate
therein that any Broker-Dealer who holds Transfer Restricted Securities that
were acquired for the account of such Broker-Dealer as a result of market-making

                                       4



activities or other trading activities (other than Series A Notes acquired
directly from the Company or any Affiliate of the Company), may exchange such
Transfer Restricted Securities pursuant to the Exchange Offer. Such "Plan of
Distribution" section shall also contain all other information with respect to
such sales by such Broker-Dealers that the Commission may require in order to
permit such sales pursuant thereto, but such "Plan of Distribution" shall not
name any such Broker-Dealer or disclose the amount of Transfer Restricted
Securities held by any such Broker-Dealer, except to the extent required by the
Commission as a result of a change in policy, rules or regulations after the
date of this Agreement. See the SHEARMAN & STERLING no-action letter (available
July 2, 1993).

         Because such Broker-Dealer may be deemed to be an "underwriter" within
the meaning of the Act and must, therefore, deliver a prospectus meeting the
requirements of the Act in connection with its initial sale of any Series B
Notes received by such Broker-Dealer in the Exchange Offer, the Company and the
Guarantors shall permit the use of the Prospectus contained in the Exchange
Offer Registration Statement by such Broker-Dealer to satisfy such prospectus
delivery requirement. To the extent necessary to ensure that the prospectus
contained in the Exchange Offer Registration Statement is available for sales of
Series B Notes by Broker-Dealers, the Company and the Guarantors agree to use
their respective best efforts to keep the Exchange Offer Registration Statement
continuously effective, supplemented, amended and current as required by and
subject to the provisions of Sections 6(a) and (c) hereof and in conformity with
the requirements of this Agreement, the Act and the policies, rules and
regulations of the Commission as announced from time to time, for a period of
one year from the Consummation Deadline or such shorter period as will terminate
when all Transfer Restricted Securities covered by such Registration Statement
have been sold pursuant thereto. The Company and the Guarantors shall provide
sufficient copies of the latest version of such Prospectus to any such
Broker-Dealers from whom the Company has received prior written notice that it
will be such a Broker-Dealer in the Exchange Offer ("PARTICIPATING
BROKER-DEALER"), promptly upon request, and in no event later than one day after
such request, at any time during such period.

SECTION 4.     SHELF REGISTRATION

      (a) SHELF REGISTRATION. If (i) the Exchange Offer is not permitted by
applicable law (after the Company and the Guarantors have complied with the
procedures set forth in Section 6(a)(i) below) or (ii) if any Holder of Transfer
Restricted Securities shall notify the Company within 20 Business Days following
the Consummation Deadline that (A) such Holder was prohibited by law or
Commission policy from participating in the Exchange Offer or (B) such Holder
may not resell the Series B Notes acquired by it in the Exchange Offer to the
public without delivering a prospectus and the Prospectus contained in the
Exchange Offer Registration Statement is not appropriate or available for such
resales by such Holder or (C) such Holder is a Broker-Dealer and holds Series A
Notes acquired directly from the Company or any of its Affiliates, then the
Company and the Guarantors shall:

      (x) cause to be filed, on or prior to 60 days after the earlier of (i)
the date on which the Company determines that the Exchange Offer Registration
Statement cannot be filed as a result of clause (a)(i) above and (ii) the date
on which the Company receives the notice specified in clause (a)(ii) above,
(such earlier date, the "FILING DEADLINE"), a shelf registration statement
pursuant to Rule 415 under the Act (which may be an amendment to the Exchange
Offer Registration Statement (the "SHELF REGISTRATION STATEMENT")), relating to
all Transfer Restricted Securities, and

      (y) shall use their respective best efforts to cause such Shelf
Registration Statement to become effective on or prior to 180 days after the
Filing Deadline for the Shelf Registration Statement (such 180th day the
"EFFECTIVENESS DEADLINE").

                                       5



         If, after the Company has filed an Exchange Offer Registration
Statement that satisfies the requirements of Section 3(a) above, the Company is
required to file and make effective a Shelf Registration Statement solely
because the Exchange Offer is not permitted under applicable federal law (i.e.,
clause (a)(i) above), then the filing of the Exchange Offer Registration
Statement shall be deemed to satisfy the requirements of clause (x) above;
PROVIDED that, in such event, the Company shall remain obligated to meet the
Effectiveness Deadline set forth in clause (y).

         To the extent necessary to ensure that the Shelf Registration Statement
is available for sales of Transfer Restricted Securities by the Holders thereof
entitled to the benefit of this Section 4(a) and the other securities required
to be registered therein pursuant to Section 6(b)(ii) hereof, the Company and
the Guarantors shall use their respective best efforts to keep any Shelf
Registration Statement required by this Section 4(a) continuously effective,
supplemented, amended and current as required by and subject to the provisions
of Sections 6(b) and (c) hereof and in conformity with the requirements of this
Agreement, the Act and the policies, rules and regulations of the Commission as
announced from time to time, for a period of at least two years (as extended
pursuant to Section 6(d)) following the Closing Date, or such shorter period as
will terminate when all Transfer Restricted Securities covered by such Shelf
Registration Statement have been sold pursuant thereto.

         (b) PROVISION BY HOLDERS OF CERTAIN INFORMATION IN CONNECTION WITH THE
SHELF REGISTRATION STATEMENT. No Holder of Transfer Restricted Securities may
include any of its Transfer Restricted Securities in any Shelf Registration
Statement pursuant to this Agreement unless and until such Holder furnishes to
the Company in writing, within 20 days after receipt of a request therefor, the
information specified in Item 507 or 508 of Regulation S-K, as applicable, of
the Act for use in connection with any Shelf Registration Statement or
Prospectus or preliminary Prospectus included therein. No Holder of Transfer
Restricted Securities shall be entitled to liquidated damages pursuant to
Section 5 hereof unless and until such Holder shall have provided all such
information. Each selling Holder agrees to promptly furnish additional
information required to be disclosed in order to make the information previously
furnished to the Company by such Holder not materially misleading.

SECTION 5.      LIQUIDATED DAMAGES

         If (i) any Registration Statement required by this Agreement is not
filed with the Commission on or prior to the applicable Filing Deadline, (ii)
any such Registration Statement has not been declared effective by the
Commission on or prior to the applicable Effectiveness Deadline, (iii) the
Exchange Offer has not been Consummated on or prior to the Consummation Deadline
or (iv) any Registration Statement required by this Agreement is filed and
declared effective but shall thereafter cease to be effective or fail to be
usable for its intended purpose without being succeeded within 2 days by a
post-effective amendment to such Registration Statement that cures such failure
and that is itself declared effective within 5 days of filing such
post-effective amendment to such Registration Statement (each such event
referred to in clauses (i) through (iv), a "REGISTRATION DEFAULT"), then the
Company and the Guarantors hereby jointly and severally agree to pay to each
Holder of Transfer Restricted Securities affected thereby liquidated damages in
an amount equal to $0.05 per week per $1,000 in principal amount of Transfer
Restricted Securities held by such Holder for each week or portion thereof that
the Registration Default continues for the first 90-day period immediately
following the occurrence of such Registration Default. The amount of the
liquidated damages shall increase by an additional $0.05 per week per $1,000 in
principal amount of Transfer Restricted Securities with respect to each
subsequent 90-day period until all Registration Defaults have been cured, up to
a maximum amount of liquidated damages of $0.50 per week per $1,000 in principal
amount of Transfer Restricted Securities; PROVIDED that the Company and the
Guarantors shall in no event be required to pay liquidated damages for more than
one Registration Default at any given time. Notwithstanding anything to the
contrary set forth herein, (1) upon filing of the Exchange Offer Registration
Statement (and/or, if applicable, the Shelf Registration Statement), in the case
of (i) above, (2) upon the effectiveness of the Exchange Offer Registration
Statement (and/or, if applicable, the Shelf Registration Statement), in the case
of (ii) above, (3) upon Consummation of the Exchange Offer, in the case of (iii)
above, or (4) upon the filing of a post-effective amendment to the Registration
Statement or an additional Registration Statement that causes the Exchange Offer
Registration Statement

                                       6



(and/or, if applicable, the Shelf Registration Statement) to again be declared
effective or made usable in the case of (iv) above, the liquidated damages
payable with respect to the Transfer Restricted Securities as a result of such
clause (i), (ii), (iii) or (iv), as applicable, shall cease.

         All accrued liquidated damages shall be paid to the Holders entitled
thereto, in the manner provided for the payment of interest in the Indenture, on
each Interest Payment Date, as more fully set forth in the Indenture and the
Notes. Notwithstanding the fact that any securities for which liquidated damages
are due cease to be Transfer Restricted Securities, all obligations of the
Company and the Guarantors to pay liquidated damages with respect to securities
shall survive until such time as such obligations with respect to such
securities shall have been satisfied in full.

SECTION 6.      REGISTRATION PROCEDURES

         (a) EXCHANGE OFFER REGISTRATION STATEMENT. In connection with the
Exchange Offer, the Company and the Guarantors shall (x) comply with all
applicable provisions of Section 6(c) below, (y) use their respective best
efforts to effect such exchange and to permit the resale of Series B Notes by
Broker-Dealers that tendered in the Exchange Offer Series A Notes that such
Broker-Dealer acquired for its own account as a result of its market making
activities or other trading activities (other than Series A Notes acquired
directly from the Company or any of its Affiliates) being sold in accordance
with the intended method or methods of distribution thereof, and (z) comply with
all of the following provisions:

                (i) If, following the date hereof there has been announced a
      change in Commission policy with respect to exchange offers such as the
      Exchange Offer, that in the reasonable opinion of counsel to the Company
      raises a substantial question as to whether the Exchange Offer is
      permitted by applicable federal law, the Company and the Guarantors hereby
      agree to seek a no-action letter or other favorable decision from the
      Commission allowing the Company and the Guarantors to Consummate an
      Exchange Offer for such Transfer Restricted Securities. The Company and
      the Guarantors hereby agree to pursue the issuance of such a decision to
      the Commission staff level but shall not be required to take any
      commercially unreasonable action to effect a change of Commission policy.
      In connection with the foregoing, the Company and the Guarantors hereby
      agree to take all such other commercially reasonable actions as may be
      requested by the Commission or otherwise required in connection with the
      issuance of such decision, including without limitation (A) participate in
      telephonic conferences with the Commission, (B) deliver to the Commission
      staff an analysis prepared by counsel to the Company setting forth the
      legal bases, if any, upon which such counsel has concluded that such an
      Exchange Offer should be permitted and (C) diligently pursue a resolution
      (which need not be favorable) by the Commission staff.

                (ii) As a condition to its participation in the Exchange Offer,
      each Holder of Transfer Restricted Securities (including, without
      limitation, any Holder who is a Broker Dealer) shall furnish, upon the
      request of the Company, prior to the Consummation of the Exchange Offer, a
      written representation to the Company and the Guarantors (which may be
      contained in the letter of transmittal contemplated by the Exchange Offer
      Registration Statement) to the effect that (A) it is not an Affiliate of
      the Company, (B) it is not engaged in, and does not intend to engage in,
      and has no arrangement or understanding with any person to participate in,
      a distribution of the Series B Notes to be issued in the Exchange Offer
      and (C) it is acquiring the Series B Notes in its ordinary course of
      business. As a

                                       7



      condition to its participation in the Exchange Offer each Holder using the
      Exchange Offer to participate in a distribution of the Series B Notes
      shall acknowledge and agree that, if the resales are of Series B Notes
      obtained by such Holder in exchange for Series A Notes acquired directly
      from the Company or an Affiliate thereof, it (1) could not, under
      Commission policy as in effect on the date of this Agreement, rely on the
      position of the Commission enunciated in MORGAN STANLEY AND CO., INC.
      (available June 5, 1991) and EXXON CAPITAL HOLDINGS CORPORATION (available
      May 13, 1988), as interpreted in the Commission's letter to SHEARMAN &
      STERLING dated July 2, 1993, and similar no-action letters (including, if
      applicable, any no-action letter obtained pursuant to clause (i) above),
      and (2) must comply with the registration and prospectus delivery
      requirements of the Act in connection with a secondary resale transaction
      and that such a secondary resale transaction must be covered by an
      effective registration statement containing the selling security holder
      information required by Item 507 or 508, as applicable, of Regulation S-K.

                (iii) Prior to effectiveness of the Exchange Offer Registration
      Statement, the Company and the Guarantors shall provide a supplemental
      letter to the Commission (A) stating that the Company and the Guarantors
      are registering the Exchange Offer in reliance on the position of the
      Commission enunciated in EXXON CAPITAL HOLDINGS CORPORATION (available May
      13, 1988), MORGAN STANLEY AND CO., INC. (available June 5, 1991) as
      interpreted in the Commission's letter to SHEARMAN & STERLING dated July
      2, 1993, and, if applicable, any no-action letter obtained pursuant to
      clause (i) above, (B) including a representation that neither the Company
      nor any Subsidiary Guarantor has entered into any arrangement or
      understanding with any Person to distribute the Series B Notes to be
      received in the Exchange Offer and that, to the best of the Company's and
      each Subsidiary Guarantor's information and belief, each Holder
      participating in the Exchange Offer is acquiring the Series B Notes in its
      ordinary course of business and has no arrangement or understanding with
      any Person to participate in the distribution of the Series B Notes
      received in the Exchange Offer and (C) any other undertaking or
      representation required by the Commission as set forth in any no-action
      letter obtained pursuant to clause (i) above, if applicable.

           (b) SHELF REGISTRATION STATEMENT. In connection with the Shelf
Registration Statement, the Company and the Guarantors shall:

                (i) comply with all the provisions of Section 6(c) below and use
their respective best efforts to effect such registration to permit the sale of
the Transfer Restricted Securities being sold in accordance with the intended
method or methods of distribution thereof (as indicated in the information
furnished to the Company pursuant to Section 4(b) hereof), and pursuant thereto
the Company and the Guarantors will prepare and file with the Commission a
Registration Statement relating to the registration on any appropriate form
under the Act, which form shall be available for the sale of the Transfer
Restricted Securities in accordance with the intended method or methods of
distribution thereof within the time periods and otherwise in accordance with
the provisions hereof.

                (ii) issue, upon the request of any Holder or purchaser of
Series A Notes covered by any Shelf Registration Statement contemplated by this
Agreement, Series B Notes having an aggregate principal amount equal to the
aggregate principal amount of Series A Notes sold pursuant to the Shelf
Registration Statement and surrendered to the Company for cancellation; the
Company shall register Series B Notes on the Shelf Registration Statement for
this purpose and issue the Series B Notes to the purchaser(s) of securities
subject to the Shelf Registration Statement in the names as such purchaser(s)
shall designate.

           (c) GENERAL PROVISIONS. In connection with any Registration Statement
and any related Prospectus required by this Agreement, the Company and the
Guarantors shall:

                                       8



                (i) use their respective best efforts to keep such Registration
      Statement continuously effective and provide all requisite financial
      statements for the period specified in Section 3 or 4 of this Agreement,
      as applicable. Upon the occurrence of any event that would cause any such
      Registration Statement or the Prospectus contained therein (A) to contain
      an untrue statement of material fact or omit to state any material fact
      necessary to make the statements therein not misleading or (B) not to be
      effective and usable for resale of Transfer Restricted Securities during
      the period required by this Agreement, the Company and the Guarantors
      shall file promptly an appropriate amendment to such Registration
      Statement curing such defect, and, if Commission review is required, use
      their respective best efforts to cause such amendment to be declared
      effective as soon as practicable.

                (ii) prepare and file with the Commission such amendments and
      post-effective amendments to the applicable Registration Statement as may
      be necessary to keep such Registration Statement effective for the
      applicable period set forth in Section 3 or 4 hereof, as the case may be;
      cause the Prospectus to be supplemented by any required Prospectus
      supplement, and as so supplemented to be filed pursuant to Rule 424 under
      the Act, and to comply fully with Rules 424, 430A and 462, as applicable,
      under the Act in a timely manner; and comply in all material respects with
      the provisions of the Act with respect to the disposition of all
      securities covered by such Registration Statement during the applicable
      period in accordance with the intended method or methods of distribution
      by the sellers thereof set forth in such Registration Statement or
      supplement to the Prospectus;

                (iii) if (1) a Shelf Registration Statement is filed pursuant to
      Section 4 hereof, or (2) a Prospectus contained in an Exchange Offer
      Registration Statement filed pursuant to Section 3 hereof is required to
      be delivered under the Securities Act by any Participating Broker-Dealer
      who seeks to sell Series B Notes that are Transfer Restricted Securities,
      advise each Holder of the Transfer Restricted Securities included within
      the coverage of the Shelf Registration Statement or such Participating
      Broker-Dealer, as the case may be, promptly and, if requested by such
      Holder or Participating Broker-Dealer, as the case may be, confirm such
      advice in writing, (A) when the Prospectus or any Prospectus supplement or
      post-effective amendment has been filed, and, with respect to any
      applicable Registration Statement or any post-effective amendment thereto,
      when the same has become effective, (B) of any request by the Commission
      for amendments to the Registration Statement or amendments or supplements
      to the Prospectus or for additional information relating thereto, (C) of
      the issuance by the Commission of any stop order suspending the
      effectiveness of the Registration Statement under the Act or of the
      suspension by any state securities commission of the qualification of the
      Transfer Restricted Securities for offering or sale in any jurisdiction,
      or the initiation of any proceeding for any of the preceding purposes, and
      (D) during the period such Registration Statement is required to be
      effective as specified in Section 3 or 4 of this Agreement, as applicable,
      of the existence of any fact or the happening of any event that makes any
      statement of a material fact made in the Registration Statement, the
      Prospectus, any amendment or supplement thereto or any document
      incorporated by reference therein untrue, or that requires the making of
      any additions to or changes in the Registration Statement in order to make
      the statements therein not misleading, or that requires the making of any
      additions to or changes in the Prospectus in order to make the statements
      therein, in the light of the circumstances under which they were made, not
      misleading. If at any time the Commission shall issue any stop order
      suspending the effectiveness of the Registration Statement, or any state
      securities commission or other regulatory authority shall issue an order
      suspending the qualification or exemption from qualification of the
      Transfer Restricted Securities under state securities or Blue Sky laws,
      the Company and the Guarantors shall use their respective best efforts to
      obtain the withdrawal or lifting of such order at the earliest possible
      time;

                (iv) subject to Section 6(c)(i), if any fact or event
      contemplated by Section 6(c)(iii)(D) above shall exist or have occurred,
      prepare a supplement or post-effective amendment to the Registration
      Statement or related Prospectus or any document incorporated therein by
      reference or file any other

                                       9



      required document so that, as thereafter delivered to the purchasers of
      Transfer Restricted Securities, the Prospectus will not contain an untrue
      statement of a material fact or omit to state any material fact necessary
      to make the statements therein, in the light of the circumstances under
      which they were made, not misleading;

                (v) if (1) a Shelf Registration Statement is filed pursuant to
      Section 4 hereof, or (2) a Prospectus contained in an Exchange Offer
      Registration Statement filed pursuant to Section 3 hereof is required to
      be delivered under the Securities Act by any Participating Broker-Dealer
      who seeks to sell Series B Notes that are Transfer Restricted Securities,
      before filing with the Commission copies of any Registration Statement or
      any Prospectus included therein or any amendments or supplements to any
      such Registration Statement or Prospectus (including all documents
      incorporated by reference after the initial filing of such Registration
      Statement), furnish to and offer each Holder of the Transfer Restricted
      Securities included within the coverage of the Shelf Registration
      Statement or such Participating Broker-Dealer, as the case may be, the
      managing underwriters (if any) and their respective counsel a reasonable
      opportunity to review copies and to participate in the preparation of all
      such documents proposed to be filed (including copies of any documents to
      be incorporated by reference thereto and all exhibits thereto) for a
      period of at least five Business Days prior to such filing, and the
      Company will include such information in such document prior to the filing
      thereof as such Holders or Participating Broker-Dealers, as the case may
      be, may reasonably request and will not file any such Registration
      Statement or Prospectus or any amendment or supplement to any such
      Registration Statement or Prospectus (including all such documents
      incorporated by reference) which shall be reasonably disapproved by such
      Holder, Participating Broker-Dealer or managing underwriters within five
      Business Days after the receipt thereof. A Holder, Participating
      Broker-Dealer or managing underwriter shall be deemed to have reasonably
      objected to such filing if such Registration Statement, amendment,
      Prospectus or supplement, as applicable, as proposed to be filed, contains
      an untrue statement of a material fact or omit to state any material fact
      necessary to make the statements therein not misleading or fails to comply
      with the applicable requirements of the Act;

                (vi) if (1) a Shelf Registration Statement is filed pursuant to
      Section 4 hereof, or (2) a Prospectus contained in an Exchange Offer
      Registration Statement filed pursuant to Section 3 hereof is required to
      be delivered under the Securities Act by any Participating Broker-Dealer
      who seeks to sell Series B Notes that are Transfer Restricted Securities,
      the Company shall (i) for a reasonable time period prior to the filing of
      such Registration Statement make reasonably available for inspection by
      the Holders of the Transfer Restricted Securities included within the
      coverage of the Shelf Registration Statement or such Participating
      Broker-Dealers, as the case may be, any underwriter (which term, for
      purpose of this Agreement, shall include a person deemed to be an
      underwriter within Section 2(11) of the Securities Act) participating in
      any disposition pursuant to the Registration Statement and any attorney,
      accountant or other agent retained by such Holders or Participating
      Broker-Dealers, as the case may be, or any such underwriter all relevant
      financial and other records, pertinent corporate documents and properties
      of the Company and the Guarantors and (ii) to cause the Company's and each
      of the Guarantor's officers, directors, employees, accountants and
      auditors to supply all information reasonably requested by such Holders or
      Participating Broker-Dealers, as the case may be, or any such underwriter,
      attorney, accountant or agent in connection with the Registration
      Statement, in each case, as shall be reasonably necessary to enable such
      persons to conduct a reasonable investigation within the meaning of
      Section 11 of the Securities Act, PROVIDED, HOWEVER, that the foregoing
      inspection and information gathering shall be coordinated by Holders and
      Participating Broker-Dealers holding in the aggregate at least 50% in
      aggregate principal amount of the sum of (I) the amount of Transfer
      Restricted Securities not yet sold under the Shelf Registration Statement
      and (II) the Transfer Restricted Securities held by such Participating
      Broker-Dealers on behalf of such parties, and by one counsel designated by
      and on behalf of such parties; and PROVIDED, FURTHER, that the Company may
      require each such parties to agree to maintain in confidence and not to
      disclose to any

                                       10



      other person any information or records reasonably designated by the
      Company as being confidential, until such time as (A) such information
      becomes a matter of public record (whether by virtue of its inclusion in
      such Registration Statement or otherwise), (B) such person shall be
      required so to disclose such information pursuant to a subpoena or order
      of any court or other governmental agency or body having jurisdiction over
      the matter (subject to the requirements of such order, and only after such
      person shall have given the Company prompt written notice of such
      requirement) or (C) such information is required to be set forth in such
      Registration Statement or the prospectus included therein or in any
      amendment to such prospectus in order that such Registration Statement,
      prospectus, amendment or supplement, as the case may be, complies with
      applicable requirements of the federal securities laws and the rules and
      regulations of the Commission and does not contain an untrue statement of
      a material fact or omit to state therein a material fact required to be
      stated therein or necessary to make the statements therein not misleading
      in light of the circumstances then existing;

                (vii) if (1) a Shelf Registration Statement is filed pursuant to
      Section 4 hereof, or (2) a Prospectus contained in an Exchange Offer
      Registration Statement filed pursuant to Section 3 hereof is required to
      be delivered under the Securities Act by any Participating Broker-Dealer
      who seeks to sell Series B Notes that are Transfer Restricted Securities,
      furnish to each Holder of Transfer Restricted Securities included within
      the coverage of the Shelf Registration Statement or such Participating
      Broker-Dealer, as the case may be, without charge, at least one copy of
      the Registration Statement and of each post-effective amendment thereto
      and, if requested, all documents incorporated by reference therein and all
      exhibits (including exhibits incorporated therein by reference);

                (viii) if (1) a Shelf Registration Statement is filed pursuant
      to Section 4 hereof, or (2) a Prospectus contained in an Exchange Offer
      Registration Statement filed pursuant to Section 3 hereof is required to
      be delivered under the Securities Act by any Participating Broker-Dealer
      who seeks to sell Series B Notes that are Transfer Restricted Securities,
      deliver to each Holder of Transfer Restricted Securities included within
      the coverage of the Shelf Registration Statement or such Participating
      Broker-Dealer, as the case may be, without charge, as many copies of the
      Prospectus (including each preliminary prospectus) or each such Holder or
      such Participating Broker-Dealer, as the case may be, and any amendment or
      supplement thereto as such Persons reasonably may request; the Company and
      the Guarantors hereby consent to the use (in accordance with law) of the
      Prospectus and any amendment or supplement thereto by each such Holder or
      Participating Broker-Dealer, as the case may be, in connection with the
      offering and the sale of the Transfer Restricted Securities covered by the
      Prospectus or any amendment or supplement thereto;

                (ix) in the case of a Shelf Registration Statement, upon the
      request by Holders aggregating at least 20% in aggregate principal amount
      of the Transfer Restricted Securities outstanding, the Trustee or the
      managing underwriters (if any) in connection with such Shelf Registration
      Statement, enter into such agreements (including underwriting agreements)
      and make such representations and warranties and take all such other
      customary actions in connection therewith in order to expedite or
      facilitate the disposition of the Transfer Restricted Securities pursuant
      to such Shelf Registration Statement contemplated by this Agreement. In
      such connection, the Company and the Guarantors shall:

                (A) upon request of by Holders aggregating at least 20% in
           aggregate principal amount of the Transfer Restricted Securities
           outstanding, the Trustee or the managing underwriters (if any),
           furnish (or in the case of paragraphs (2) and (3), use its best
           efforts to cause to be furnished) to each Holder upon the
           effectiveness of the Shelf Registration Statement:

                      (1) a certificate, dated such date, signed on behalf of
                the Company and each Guarantor by (x) the President and (y) the
                Chief Financial Officer of the Company and such Guarantors,
                confirming, as of the date thereof, the matters set forth in
                Sections 9(a), 9(b) and 9(e) (the

                                       11



                first clause of which may be limited to the Company's knowledge)
                and Section 6(dd) of the Purchase Agreement (except to the
                extent any exception to such matters are disclosed in such
                certificate) and such other similar matters as such Holders may
                reasonably request;

                      (2) an opinion, dated the date of effectiveness of the
                Shelf Registration Statement of counsel for the Company and the
                Guarantors covering matters similar to those set forth in
                paragraphs (f), (g), (h), (i) and (p) of Section 9 of the
                Purchase Agreement and such other matter as such Holder may
                reasonably request, and in any event including a statement to
                the effect that such counsel has participated in conferences
                with officers and other representatives of the Company and the
                Guarantors, representatives of the independent public
                accountants for the Company and the Guarantors and have
                considered the matters required to be stated therein and the
                statements contained therein, although such counsel has not
                independently verified the accuracy, completeness or fairness of
                such statements; and that such counsel advises that, on the
                basis of the foregoing (relying as to materiality to the extent
                such counsel deems appropriate upon the statements of officers
                and other representatives of the Company and the Guarantors and
                without independent check or verification), no facts came to
                such counsel's attention that caused such counsel to believe
                that the applicable Registration Statement, at the time such
                Registration Statement or any post-effective amendment thereto
                became effective, contained an untrue statement of a material
                fact or omitted to state a material fact required to be stated
                therein or necessary to make the statements therein not
                misleading, or that the Prospectus contained in such
                Registration Statement as of its date and contained an untrue
                statement of a material fact or omitted to state a material fact
                necessary in order to make the statements therein, in the light
                of the circumstances under which they were made, not misleading.
                Without limiting the foregoing, such counsel may state further
                that such counsel assumes no responsibility for, and has not
                independently verified, the accuracy, completeness or fairness
                of the financial statements, notes and schedules and other
                financial data included in any Registration Statement
                contemplated by this Agreement or the related Prospectus;

                      (3) a customary comfort letter, dated as of the date of
                effectiveness of the Shelf Registration Statement, from the
                Company's independent accountants, in the customary form and
                covering matters of the type customarily covered in comfort
                letters to underwriters in connection with underwritten
                offerings, and affirming the matters set forth in the comfort
                letters delivered pursuant to Section 9(k) of the Purchase
                Agreement; and

                (B) deliver such other documents and certificates as may be
           reasonably requested by Holders aggregating at least 20% in aggregate
           principal amount of the Transfer Restricted Securities outstanding,
           the Trustee or the managing underwriters (if any) to evidence
           compliance with the matters covered in clause (A) above and with any
           customary conditions contained in any agreement entered into by the
           Company and the Guarantors pursuant to this clause (ix);

                (x) in the case of the Exchange Offer, if requested by any
      Participating Broker-Dealer, the Company shall furnish (or in the case of
      paragraphs (B) and (C), use its best efforts to cause to be furnished) to
      each Participating Broker-Dealer, upon Consummation of the Exchange Offer:

                (A) a certificate, dated the date of Consummation of the
           Exchange Offer, signed on behalf of the Company and each Guarantor by
           (x) the President and (y) the Chief Financial Officer of the Company
           and such Guarantors, confirming, as of the date thereof, the matters
           set forth in Sections 9(a), 9(b) and 9(e) (the first clause of which
           may be limited to the Company's knowledge) and Section 6(dd) of the
           Purchase Agreement (except to the extent any exception to such
           matters are

                                       12



           disclosed in such certificate) and such other similar matters as such
           Participating Broker-Dealers may reasonably request;

                (B) an opinion, dated the date of Consummation of the Exchange
           Offer, of counsel for the Company and the Guarantors covering matters
           similar to those set forth in paragraphs (f), (g), (h), (i) and (p)
           of Section 9 of the Purchase Agreement with such changes as are
           customary in connection with the preparation of the Registration
           Statement; and

                (C) a customary comfort letter, dated the date of Consummation
           of the Exchange Offer, from the Company's independent accountants, in
           the customary form and covering matters of the type customarily
           covered in comfort letters to underwriters in connection with
           underwritten offerings, and affirming the matters set forth in the
           comfort letters delivered pursuant to Section 9(k) of the Purchase
           Agreement.

                (xi) prior to any public offering of Transfer Restricted
           Securities, cooperate with the selling Holders and their counsel in
           connection with the registration and qualification of the Transfer
           Restricted Securities under the securities or Blue Sky laws of such
           jurisdictions as the selling Holders may request and do any and all
           other acts or things necessary or advisable to enable the disposition
           in such jurisdictions of the Transfer Restricted Securities covered
           by the applicable Registration Statement; PROVIDED, HOWEVER, that
           neither the Company nor any Subsidiary Guarantor shall be required to
           register or qualify as a foreign corporation where it is not now so
           qualified or to take any action that would subject it to the service
           of process in suits or to taxation, other than as to matters and
           transactions relating to the Registration Statement, in any
           jurisdiction where it is not now so subject;

                (xii) in connection with any sale of Transfer Restricted
           Securities that will result in such securities no longer being
           Transfer Restricted Securities, cooperate with the Holders to
           facilitate the timely preparation and delivery of certificates
           representing Transfer Restricted Securities to be sold and not
           bearing any restrictive legends; and to register such Transfer
           Restricted Securities in such denominations and such names as the
           selling Holders may request at least two Business Days prior to such
           sale of Transfer Restricted Securities;

                (xiii) use their respective best efforts to cause the
           disposition of the Transfer Restricted Securities covered by the
           Registration Statement to be registered with or approved by such
           other governmental agencies or authorities as may be necessary to
           enable the seller or sellers thereof to consummate the disposition of
           such Transfer Restricted Securities, subject to the proviso contained
           in clause (xii) above;

                (xiv) provide a CUSIP number for all Transfer Restricted
           Securities not later than the effective date of a Registration
           Statement covering such Transfer Restricted Securities and provide
           the Trustee under the Indenture with printed certificates for the
           Transfer Restricted Securities which are in a form eligible for
           deposit with the Depository Trust Company;

                (xv) otherwise use their respective best efforts to comply in
           all material respects with all applicable rules and regulations of
           the Commission, and make generally available to its security holders
           with regard to any applicable Registration Statement, as soon as
           practicable, a consolidated earnings statement meeting the
           requirements of Rule 158 (which need not be audited) covering a
           twelve-month period beginning after the effective date of the
           Registration Statement (as such term is defined in paragraph (c) of
           Rule 158 under the Act); and

                (xvi) cause the Indenture to be qualified under the TIA not
           later than the effective date of the first Registration Statement
           required by this Agreement and, in connection therewith, cooperate
           with

                                       13



      the Trustee and the Holders to effect such changes to the Indenture as may
      be required for such Indenture to be so qualified in accordance with the
      terms of the TIA; and execute and use its best efforts to cause the
      Trustee to execute, all documents that may be required to effect such
      changes and all other forms and documents required to be filed with the
      Commission to enable such Indenture to be so qualified in a timely manner.

         (d) RESTRICTIONS ON HOLDERS. Each Holder agrees by acquisition of a
Transfer Restricted Security that, upon receipt of the notice referred to in
Section 6(c)(iii)(C) or any notice from the Company of the existence of any fact
of the kind described in Section 6(c)(iii)(D) hereof (in each case, a
"SUSPENSION NOTICE"), such Holder will forthwith discontinue disposition of
Transfer Restricted Securities pursuant to the applicable Registration Statement
until (i) such Holder has received copies of the supplemented or amended
Prospectus contemplated by Section 6(c)(iv) hereof, or (ii) such Holder is
advised in writing by the Company that the use of the Prospectus may be resumed,
and has received copies of any additional or supplemental filings that are
incorporated by reference in the Prospectus (in each case, the "RECOMMENCEMENT
DATE"). Each Holder receiving a Suspension Notice hereby agrees that it will
either (i) destroy any Prospectuses, other than permanent file copies, then in
such Holder's possession which have been replaced by the Company with more
recently dated Prospectuses or (ii) deliver to the Company (at the Company's
expense) all copies, other than permanent file copies, then in such Holder's
possession of the Prospectus covering such Transfer Restricted Securities that
was current at the time of receipt of the Suspension Notice. The time period
regarding the effectiveness of such Registration Statement set forth in Section
3 or 4 hereof, as applicable, shall be extended by a number of days equal to the
number of days in the period from and including the date of delivery of the
Suspension Notice to the date of delivery of the Recommencement Date.

SECTION 7.      REGISTRATION EXPENSES

         (a) Subject to Section 10, all expenses incident to the Company's and
the Guarantors' performance of or compliance with this Agreement will be borne
by the Company, regardless of whether a Registration Statement becomes
effective, including without limitation: (i) all registration and filing fees
and expenses; (ii) all fees and expenses of compliance with federal securities
and state Blue Sky or securities laws; (iii) all expenses of printing (including
printing certificates for the Series B Notes to be issued in the Exchange Offer
and printing of Prospectuses), messenger and delivery services and telephone;
(iv) all fees and disbursements of counsel for the Company, the Guarantors and
the Holders of Transfer Restricted Securities; (v) all application and filing
fees in connection with listing the Series B Notes on a national securities
exchange or automated quotation system pursuant to the requirements hereof; and
(vi) all fees and disbursements of independent certified public accountants of
the Company and the Guarantors (including the expenses of any special audit and
comfort letters required by or incident to such performance).

         Subject to Section 10, the Company will, in any event, bear its and the
Guarantors' internal expenses (including, without limitation, all salaries and
expenses of its officers and employees performing legal or accounting duties),
the expenses of any annual audit and the fees and expenses of any Person,
including special experts, retained by the Company or the Guarantors.

         (b) In connection with any Registration Statement required by this
Agreement (including, without limitation, the Exchange Offer Registration
Statement and the Shelf Registration Statement), the Company and the Guarantors
will reimburse the Initial Purchasers and the Holders of Transfer Restricted
Securities who are tendering Series A Notes in the Exchange Offer and/or selling
or reselling Series A Notes or Series B Notes pursuant to the "Plan of
Distribution" contained in the Exchange Offer Registration Statement or the
Shelf Registration Statement, as applicable, for the reasonable fees and
disbursements of

                                       14



not more than one counsel, who shall be Sullivan & Cromwell, unless another firm
shall be chosen by the Holders of a majority in principal amount of the Transfer
Restricted Securities for whose benefit such Registration Statement is being
prepared.

SECTION 8.      INDEMNIFICATION

         (a) The Company and the Guarantors agree, jointly and severally, to
indemnify and hold harmless each Holder, its directors, officers and each
Person, if any, who controls such Holder (within the meaning of Section 15 of
the Act or Section 20 of the Exchange Act), from and against any and all losses,
claims, damages, liabilities, judgments, (including without limitation, any
legal or other expenses incurred in connection with investigating or defending
any matter, including any action that could give rise to any such losses,
claims, damages, liabilities or judgments) caused by any untrue statement or
alleged untrue statement of a material fact contained in any Registration
Statement, preliminary prospectus or Prospectus (or any amendment or supplement
thereto) provided by the Company to any Holder or any prospective purchaser of
Series B Notes or registered Series A Notes, or caused by any omission or
alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading, except insofar as
such losses, claims, damages, liabilities or judgments are caused by an untrue
statement or omission or alleged untrue statement or omission that is based upon
information relating to any of the Holders furnished in writing to the Company
by any of the Holders; and PROVIDED, that the Company and each Guarantor shall
not be liable to any Holder under the indemnity agreement in this subsection (a)
with respect to any preliminary prospectus to the extent that any such loss,
claim, damage or liability of such Holder results from the fact that such Holder
sold Series A Notes to a person as to whom it shall be established that there
was not sent or given, at or prior to the written confirmation of such sale, a
copy of the prospectus or of the prospectus as then amended or supplemented in
any case where such delivery is required by the Act if the Company or any
Guarantor has previously furnished copies thereof in sufficient quantity to such
Holder and the loss, claim, damage or liability of such Holder results from an
untrue statement or omission of a material fact contained in the preliminary
prospectus which was identified in writing at such time to such Holder and
corrected in the prospectus.

         (b) Each Holder of Transfer Restricted Securities agrees, severally and
not jointly, to indemnify and hold harmless the Company and the Guarantors, and
their respective directors and officers, and each person, if any, who controls
(within the meaning of Section 15 of the Act or Section 20 of the Exchange Act)
the Company, or the Guarantors to the same extent as the foregoing indemnity
from the Company and the Guarantors set forth in Section 8(a) above, but only
with reference to information relating to such Holder furnished in writing to
the Company by such Holder expressly for use in any Registration Statement. In
no event shall any Holder, its directors, officers or any Person who controls
such Holder be liable or responsible for any amount in excess of the amount by
which the total amount received by such Holder with respect to its sale of
Transfer Restricted Securities pursuant to a Registration Statement exceeds (i)
the amount paid by such Holder for such Transfer Restricted Securities and (ii)
the amount of any damages that such Holder, its directors, officers or any
Person who controls such Holder has otherwise been required to pay by reason of
such untrue or alleged untrue statement or omission or alleged omission.

         (c) In case any action shall be commenced involving any person in
respect of which indemnity may be sought pursuant to Section 8(a) or 8(b) (the
"INDEMNIFIED PARTY"), the indemnified party shall promptly notify the person
against whom such indemnity may be sought (the "INDEMNIFYING PERSON") in writing
and the indemnifying party shall assume the defense of such action, including
the employment of counsel reasonably satisfactory to the indemnified party and
the payment of all fees and expenses of such counsel, as incurred (except that
in the case of any action in respect of which indemnity may be sought pursuant
to both Sections 8(a) and 8(b), a Holder shall not be required to assume the
defense of such action pursuant to this Section 8(c), but may employ separate
counsel and participate in the defense thereof, but the

                                       15



fees and expenses of such counsel, except as provided below, shall be at the
expense of the Holder). Any indemnified party shall have the right to employ
separate counsel in any such action and participate in the defense thereof, but
the fees and expenses of such counsel shall be at the expense of the indemnified
party unless (i) the employment of such counsel shall have been specifically
authorized in writing by the indemnifying party, (ii) the indemnifying party
shall have failed to assume the defense of such action or employ counsel
reasonably satisfactory to the indemnified party or (iii) the named parties to
any such action (including any impleaded parties) include both the indemnified
party and the indemnifying party, and the indemnified party shall have been
advised by such counsel that there may be one or more legal defenses available
to it which are different from or additional to those available to the
indemnifying party (in which case the indemnifying party shall not have the
right to assume the defense of such action on behalf of the indemnified party).
In any such case, the indemnifying party shall not, in connection with any one
action or separate but substantially similar or related actions in the same
jurisdiction arising out of the same general allegations or circumstances, be
liable for the fees and expenses of more than one separate firm of attorneys (in
addition to any local counsel) for all indemnified parties and all such fees and
expenses shall be reimbursed as they are incurred. Such firm shall be designated
in writing by a majority of the Holders, in the case of the parties indemnified
pursuant to Section 8(a), and by the Company and Guarantors, in the case of
parties indemnified pursuant to Section 8(b). The indemnifying party shall
indemnify and hold harmless the indemnified party from and against any and all
losses, claims, damages, liabilities and judgments by reason of any settlement
of any action (i) effected with its written consent or (ii) effected without its
written consent if the settlement is entered into more than twenty business days
after the indemnifying party shall have received a request from the indemnified
party for reimbursement for the fees and expenses of counsel (in any case where
such fees and expenses are at the expense of the indemnifying party) and, prior
to the date of such settlement, the indemnifying party shall have failed to
comply with such reimbursement request. No indemnifying party shall, without the
prior written consent of the indemnified party, effect any settlement or
compromise of, or consent to the entry of judgment with respect to, any pending
or threatened action in respect of which the indemnified party is or could have
been a party and indemnity or contribution may be or could have been sought
hereunder by the indemnified party, unless such settlement, compromise or
judgment (i) includes an unconditional release of the indemnified party from all
liability on claims that are or could have been the subject matter of such
action and (ii) does not include a statement as to or an admission of fault,
culpability or a failure to act, by or on behalf of the indemnified party.

         (d) To the extent that the indemnification provided for in this Section
8 is unavailable to an indemnified party in respect of any losses, claims,
damages, liabilities or judgments referred to therein, then each indemnifying
party, in lieu of indemnifying such indemnified party, shall contribute to the
amount paid or payable by such indemnified party as a result of such losses,
claims, damages, liabilities or judgments (i) in such proportion as is
appropriate to reflect the relative benefits received by the Company and the
Guarantors, on the one hand, and the Holders, on the other hand, from their sale
of Transfer Restricted Securities or (ii) if the allocation provided by clause
8(d)(i) is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause 8(d)(i) above
but also the relative fault of the Company and the Guarantors, on the one hand,
and of the Holder, on the other hand, in connection with the statements or
omissions which resulted in such losses, claims, damages, liabilities or
judgments, as well as any other relevant equitable considerations. The relative
fault of the Company and the Guarantors, on the one hand, and of the Holder, on
the other hand, shall be determined by reference to, among other things, whether
the untrue or alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information supplied by the
Company or such Subsidiary Guarantor, on the one hand, or by the Holder, on the
other hand, and the parties' relative intent, knowledge, access to information
and opportunity to correct or prevent such statement or omission.

         The Company, the Guarantors and each Holder agree that it would not be
just and equitable if contribution pursuant to this Section 8(d) were determined
by pro rata allocation (even if the Holders were

                                       16



treated as one entity for such purpose) or by any other method of allocation
which does not take account of the equitable considerations referred to in the
immediately preceding paragraph. The amount paid or payable by an indemnified
party as a result of the losses, claims, damages, liabilities or judgments
referred to in the immediately preceding paragraph shall be deemed to include,
subject to the limitations set forth above, any legal or other expenses incurred
by such indemnified party in connection with investigating or defending any
matter, including any action that could have given rise to such losses, claims,
damages, liabilities or judgments. Notwithstanding the provisions of this
Section 8(d), no Holder, its directors, its officers or any Person, if any, who
controls such Holder shall be required to contribute, in the aggregate, any
amount in excess of the amount by which the total received by such Holder with
respect to the sale of Transfer Restricted Securities pursuant to a Registration
Statement exceeds (i) the amount paid by such Holder for such Transfer
Restricted Securities and (ii) the amount of any damages which such Holder has
otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent
misrepresentation. The Holders' obligations to contribute pursuant to this
Section 8(d) are several in proportion to the respective principal amount of
Transfer Restricted Securities held by each Holder hereunder and not joint.

SECTION 9.      RULE 144A and RULE 144

           The Company and each Subsidiary Guarantor agrees with each Holder,
for so long as any Transfer Restricted Securities remain outstanding and during
any period in which the Company or such Subsidiary Guarantor (i) is not subject
to Section 13 or 15(d) of the Exchange Act, to make available, upon request of
any Holder, to such Holder or beneficial owner of Transfer Restricted Securities
in connection with any sale thereof and any prospective purchaser of such
Transfer Restricted Securities designated by such Holder or beneficial owner,
the information required by Rule 144A(d)(4) under the Act in order to permit
resales of such Transfer Restricted Securities pursuant to Rule 144A, and (ii)
is subject to Section 13 or 15 (d) of the Exchange Act, to make all filings
required thereby in a timely manner in order to permit resales of such Transfer
Restricted Securities pursuant to Rule 144.

SECTION 10.     UNDERWRITTEN REGISTRATIONS.

         (a) SELECTION OF UNDERWRITERS. If any of the Transfer Restricted
Securities covered by any Shelf Registration Statement are to be sold in an
underwritten offering, the investment banker or investment bankers and manager
or managers that will administer the offering will be selected by the Holders of
a majority in aggregate principal amount of such Transfer Restricted Securities
included in such offering, provided that such designated managing underwriter or
underwriters is or are reasonably acceptable to the Company.

           (b) PARTICIPATION OF HOLDERS. No person may participate in any
underwritten registration hereunder unless such person (i) agrees to sell such
person's Transfer Restricted Securities on the basis reasonably provided in any
underwriting agreements approved by the persons entitled hereunder to approve
such arrangements and (ii) completes and executes all questionnaires, powers of
attorney, indemnities, underwriting agreements and other documents reasonably
required under the terms of such underwriting agreements.

                                       17



SECTION 11.     MISCELLANEOUS

         (a) REMEDIES. The Company and the Guarantors acknowledge and agree that
any failure by the Company and/or the Guarantors to comply with their respective
obligations under Sections 3 and 4 hereof may result in material irreparable
injury to the Initial Purchasers or the Holders for which there is no adequate
remedy at law, that it will not be possible to measure damages for such injuries
precisely and that, in the event of any such failure, the Initial Purchasers or
any Holder may obtain such relief as may be required to specifically enforce the
Company's and the Guarantors' obligations under Sections 3 and 4 hereof. The
Company and the Guarantors further agree to waive the defense in any action for
specific performance that a remedy at law would be adequate.

         (b) NO INCONSISTENT AGREEMENTS. Neither the Company nor any Subsidiary
Guarantor will, on or after the date of this Agreement, enter into any agreement
with respect to its securities that is inconsistent with the rights granted to
the Holders in this Agreement or otherwise conflicts with the provisions hereof.
Neither the Company nor any Subsidiary Guarantor has previously entered into any
agreement granting any registration rights with respect to the Series A Notes to
any Person. The rights granted to the Holders hereunder do not in any way
conflict with and are not inconsistent with the rights granted to the holders of
the Company's and the Guarantors' securities under any agreement in effect on
the date hereof.

         (c) AMENDMENTS AND WAIVERS. The provisions of this Agreement may not be
amended, modified or supplemented, and waivers or consents to or departures from
the provisions hereof may not be given unless (i) in the case of Section 5
hereof and this Section 11(c)(i), the Company has obtained the written consent
of Holders of all outstanding Transfer Restricted Securities and (ii) in the
case of all other provisions hereof, the Company has obtained the written
consent of Holders of a majority of the outstanding principal amount of Transfer
Restricted Securities (excluding Transfer Restricted Securities held by the
Company or its Affiliates). Notwithstanding the foregoing, a waiver or consent
to departure from the provisions hereof that relates exclusively to the rights
of Holders whose Transfer Restricted Securities are being tendered pursuant to
the Exchange Offer, and that does not affect directly or indirectly the rights
of other Holders whose Transfer Restricted Securities are not being tendered
pursuant to such Exchange Offer, may be given by the Holders of a majority of
the outstanding principal amount of Transfer Restricted Securities subject to
such Exchange Offer.

         (d) THIRD PARTY BENEFICIARY. The Holders shall be third party
beneficiaries to the agreements made hereunder between the Company and the
Guarantors, on the one hand, and the Initial Purchasers, on the other hand, and
shall have the right to enforce such agreements directly to the extent they may
deem such enforcement necessary or advisable to protect its rights or the rights
of Holders hereunder.

         (e) NOTICES. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, first-class mail
(registered or certified, return receipt requested), telex, telecopier, or air
courier guaranteeing overnight delivery:

                (i) if to a Holder, at the address set forth on the records of
      the Registrar under the Indenture, with a copy to the Registrar under the
      Indenture; and

                (ii) if to the Company or the Guarantors:

                      Concentra Operating Corporation
                      5080 Spectrum Drive
                      Suite 400, West Tower
                      Addison, TX 75248
                      Attention:  Richard A. Parr II, Esq.

                                       18



                      With a copy to:

                      Reboul, MacMurray, Hewitt, Maynard & Kristol
                      45 Rockerfeller Plaza
                      New York, NY10111
                      Attention:  Jonathan Cramer, Esq.

         All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; five Business
Days after being deposited in the mail, postage prepaid, if mailed; when receipt
acknowledged, if telecopied; and on the next business day, if timely delivered
to an air courier guaranteeing overnight delivery.

         Copies of all such notices, demands or other communications shall be
concurrently delivered by the Person giving the same to the Trustee at the
address specified in the Indenture.

         (f) SUCCESSORS AND ASSIGNS. This Agreement shall inure to the benefit
of and be binding upon the successors and assigns of each of the parties,
including without limitation and without the need for an express assignment,
subsequent Holders; PROVIDED, that nothing herein shall be deemed to permit any
assignment, transfer or other disposition of Transfer Restricted Securities in
violation of the terms hereof or of the Purchase Agreement or the Indenture. If
any transferee of any Holder shall acquire Transfer Restricted Securities in any
manner, whether by operation of law or otherwise, such Transfer Restricted
Securities shall be held subject to all of the terms of this Agreement, and by
taking and holding such Transfer Restricted Securities such Person shall be
conclusively deemed to have agreed to be bound by and to perform all of the
terms and provisions of this Agreement, including the restrictions on resale set
forth in this Agreement and, if applicable, the Purchase Agreement, and such
Person shall be entitled to receive the benefits hereof.

         (g) COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

         (h) HEADINGS. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

         (i) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO THE
CONFLICT OF LAW RULES THEREOF.

         (j) SEVERABILITY. In the event that any one or more of the provisions
contained herein, or the application thereof in any circumstance, is held
invalid, illegal or unenforceable, the validity, legality and enforceability of
any such provision in every other respect and of the remaining provisions
contained herein shall not be affected or impaired thereby.

         (k) ENTIRE AGREEMENT. This Agreement is intended by the parties as a
final expression of their agreement and intended to be a complete and exclusive
statement of the agreement and understanding of the parties hereto in respect of
the subject matter contained herein. There are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein
with respect to the registration rights granted with respect to the Transfer
Restricted Securities. This Agreement supersedes all prior agreements and
understandings between the parties with respect to such subject matter.

                                       19





           IN WITNESS WHEREOF, the parties have executed this Agreement as of
the date first written above.

                                          CONCENTRA OPERATING CORPORATION


                                          By: /s/ Richard A. Parr II
                                              ----------------------------------
                                              Name: Richard A. Parr II
                                              Title: Executive Vice President


                                          CONCENTRA MANAGEMENT SERVICES, INC.
                                          CONCENTRA PREFERRED SYSTEMS, INC.
                                          PROMPT ASSOCIATES, INC.
                                          FIRST NOTICE SYSTEMS, INC.
                                          FOCUS HEALTHCARE MANAGEMENT, INC.
                                          HILLMAN CONSULTING, INC.
                                          CRA MANAGED CARE OF WASHINGTON, INC.
                                          CRA-MCO, INC.
                                          DRUG FREE CONSORTIUM, INC.



                                          By: /s/ Richard A. Parr II
                                              ----------------------------------
                                             Name: Richard A. Parr II
                                             Title:   Vice President


                                          CONCENTRA MANAGED CARE SERVICES, INC.
                                          CONCENTRA HEALTH SERVICES, INC.



                                          By: /s/ Richard A. Parr II
                                              ----------------------------------
                                              Name: Richard A. Parr II
                                              Title:   Executive Vice President


                                       20




                                      CONCENTRA MANAGED CARE BUSINESS TRUST
                                      By: Concentra Managed Care Services, Inc.,
                                          Trustee


                                      By: /s/ Richard A. Parr II
                                          --------------------------------------
                                          Name: Richard A. Parr II
                                          Title: Executive Vice President


                                      OCCUCENTERS I, L.P.
                                       By: Concentra Health Services, Inc.,
                                           General Partner


                                     By: /s/ Richard A. Parr II
                                         ---------------------------------------
                                         Name: Richard A. Parr II
                                         Title: Executive Vice President


                                      OCI HOLDINGS, INC.


                                      By: /s/ Daniel J. Thomas
                                          --------------------------------------
                                         Name: Daniel J. Thomas
                                         Title: President


                                       21






DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION

By: /s/ William G. Payne
   -----------------------------------------
   Name: William G. Payne
   Title: Vice President


CHASE SECURITIES INC.

By: /s/ James P. Casey
   -----------------------------------------
   Name: James P. Casey
   Title: Managing Director


CREDIT SUISSE FIRST BOSTON CORPORATION

By: /s/ Harold W. Bogle
   -----------------------------------------
   Name: Harold W. Bogle
   Title: Managing Director


DEUTSCHE BANK SECURITIES INC.

By: /s/ Lorenz Zimmerman
   -----------------------------------------
   Name:  Lorenz Zimmerman
   Title: Managing Director


FLEET SECURITIES, INC.

By: /s/ Scott Vallar
   -----------------------------------------
   Name: Scott Vallar
   Title: Managing Director