Document:

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                                  EXHIBIT 10.23

                                                                  EXECUTION COPY

          AMENDMENT No. 1 (this "Amendment") dated as of November 10, 2006, to
the CREDIT AGREEMENT dated as of August 2, 2006 (as amended, supplemented or
otherwise modified from time to time, the "Credit Agreement"), among USG
CORPORATION, a Delaware corporation (the "Borrower"), the LENDERS party thereto,
JPMORGAN CHASE BANK, N.A., as Administrative Agent (the "Administrative Agent")
and GOLDMAN SACHS CREDIT PARTNERS L.P., as Syndication Agent.

          WHEREAS pursuant to the Credit Agreement, the Lenders and the Issuing
Bank have agreed to extend credit to the Borrower on the terms and subject to
the conditions set forth therein;

          WHEREAS the Borrower has requested that the Lenders consent to certain
amendments to the Credit Agreement as set forth herein; and

          WHEREAS the undersigned Lenders are willing so to amend the Credit
Agreement on the terms and subject to the conditions set forth herein;

          NOW, THEREFORE, in consideration of the mutual agreements herein
contained and other good and valuable consideration, the sufficiency and receipt
of which are hereby acknowledged, and subject to the conditions set forth
herein, the parties hereto hereby agree as follows:

          SECTION 1. Defined Terms. Capitalized terms used but not defined
     herein shall have the meanings assigned to such terms in the Credit
     Agreement.

          SECTION 2. Amendments. (a) Section 1.01 of the Credit Agreement is
     hereby amended by adding the following definition in the appropriate
     alphabetical order:

               "Amendment No. 1" means Amendment No. 1 dated as of November 10,
          2006, to this Agreement among the Borrower, the Lenders party thereto
          and the Administrative Agent.

          (b) Section 6.10(vi) of the Credit Agreement is hereby amended by
     deleting the text "and" immediately after the text "thereof" at the end of
     such Section and inserting a comma in its place.

          (c) Section 6.10 of the Credit Agreement is hereby amended by
     inserting the text "and (viii) paragraph (a) of the foregoing shall not
     apply to restrictions or conditions imposed by any agreement if the terms
     of such agreement expressly permit the creation, incurrence and existence
     of Liens to secure Indebtedness under this Agreement and extensions,
     renewals and replacements of any such Indebtedness", immediately before the
     period at the end of such Section.

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                                                                               2

          SECTION 3. Representations and Warranties. The Borrower represents and
     warrants to the Administrative Agent and to each of the Lenders that:

          (a) This Amendment has been duly authorized, executed and delivered by
     the Borrower and constitutes a legal, valid and binding obligation of the
     Borrower, enforceable in accordance with its terms, subject to applicable
     bankruptcy, insolvency, reorganization, moratorium or other laws affecting
     creditors' rights generally and subject to general principles of equity,
     regardless of whether considered in a proceeding in equity or at law.

          (b) Other than the representation and warranty set forth in Section
     3.04(b) of the Credit Agreement, the representations and warranties of the
     Borrower set forth in the Credit Agreement, (i) to the extent any such
     representation or warranty is qualified by materiality, are true and
     correct and (ii) to the extent any such representation or warranty is not
     so qualified, are true and correct in all material respects, in each case,
     on and as of the date hereof (except to the extent such representations and
     warranties expressly relate to an earlier date, in which case such
     representations and warranties are true and correct as of such earlier
     date).

          (c) Immediately before and after giving effect to this Amendment, no
     Default shall have occurred and be continuing.

          SECTION 4. Effectiveness. This Amendment shall become effective when
     (a) the Administrative Agent shall have received counterparts of this
     Amendment that, when taken together, bear the signatures of the Borrower
     and the Required Lenders, (b) the representations and warranties set forth
     in Section 3 hereof are true and correct and (c) all reasonable invoiced
     fees, charges and disbursements of Cravath, Swaine & Moore LLP, counsel to
     the Administrative Agent, submitted to the Borrower and required to be paid
     or reimbursed by the Borrower under or in connection with this Amendment
     and the Credit Agreement have been paid or reimbursed by the Borrower.
     Promptly upon the effectiveness of this Amendment, the Administrative Agent
     shall provide written notice to the Borrower thereof.

          SECTION 5. Credit Agreement. Except as expressly set forth herein,
     this Amendment (a) shall not by implication or otherwise limit, impair,
     constitute a waiver of or otherwise affect the rights and remedies of the
     Lenders, the Issuing Bank, the Administrative Agent or the Borrower under
     the Credit Agreement or any other Loan Document and (b) shall not alter,
     modify, amend or in any way affect any of the terms, conditions,
     obligations, covenants or agreements contained in the Credit Agreement or
     any other Loan Document, all of which are ratified and affirmed in all
     respects and shall continue in full force and effect. Nothing herein shall
     be deemed to entitle the Borrower to a consent to, or a waiver, amendment,
     modification or other change of, any of the terms, conditions, obligations,
     covenants or agreements contained in the Credit Agreement or any other Loan
     Document in similar or different circumstances. After the date hereof,

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                                                                               3

     any reference in the Loan Documents to the Credit Agreement shall mean the
     Credit Agreement as modified hereby.

          SECTION 6. Applicable Law; Waiver of Jury Trial. (a) THIS AMENDMENT
     SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE
     OF NEW YORK.

          (b) EACH PARTY HERETO HEREBY AGREES AS SET FORTH IN SECTIONS 9.09 AND
9.10 OF THE CREDIT AGREEMENT AS IF SUCH SECTIONS WERE SET FORTH IN FULL HEREIN.

          SECTION 7. Counterparts; Amendments. This Amendment may be executed in
     two or more counterparts, each of which shall constitute an original but
     all of which when taken together shall constitute a single contract.
     Delivery of an executed counterpart of a signature page of this Amendment
     by telecopy shall be effective as delivery of a manually executed
     counterpart of this Amendment. Except as otherwise permitted by Section
     9.02 of the Credit Agreement, this Amendment may not be amended nor may any
     provision hereof be waived except pursuant to a writing signed by the
     Borrower, the Administrative Agent and the Required Lenders.

          SECTION 8. Headings. The Section headings used herein are for
     convenience of reference only, are not part of this Amendment and are not
     to affect the construction of, or to be taken into consideration in
     interpreting, this Amendment.

                  [remainder of page intentionally left blank]

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          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed by their respective authorized officers as of the day and year
first written above.

                                        USG CORPORATION,

                                        By /s/ Karen L. Leets
                                           -------------------------------------
                                        Name: Karen L. Leets
                                        Title: VP and Treasurer

                        [AMENDMENT NO. 1 SIGNATURE PAGE]

<PAGE>

                                        JPMORGAN CHASE BANK, N.A.,
                                        individually and as Administrative
                                        Agent,

                                        By /s/ Peter S. Predun
                                           -------------------------------------
                                        Name: Peter S. Predun
                                        Title: Vice President

                        [AMENDMENT NO. 1 SIGNATURE PAGE]

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                                        SIGNATURE PAGE TO AMENDMENT NO. 1
                                        DATED AS OF NOVEMBER , 2006, AMONG USG
                                        CORPORATION, THE LENDERS PARTY THERETO,
                                        AND JPMORGAN CHASE BANK, N.A., AS
                                        ADMINISTRATIVE AGENT,

                                        Name of Institution: Bank of America,
                                        N.A.

                                        By /s/ W. Thomas Barnett
                                           -------------------------------------
                                        Name: W. Thomas Barnett
                                        Title: Senior Vice President

                                        Name of Institution: Barclays Bank PLC

                                        By /s/ Alison McGuigan
                                           -------------------------------------
                                        Name: Alison McGuigan
                                        Title: Associate Director

                                        Name of Institution: Citicorp USA, Inc.

                                        By /s/ Richard M. Levin
                                           -------------------------------------
                                        Name: Richard M. Levin
                                        Title: Director

                                        Name of Institution: Goldman Sachs
                                        Credit Partners L.P.

                                        By /s/ Juan Carlos Isaza
                                           -------------------------------------
                                        Name: Juan Carlos Isaza
                                              Authorized Signatory

                        [AMENDMENT NO. 1 SIGNATURE PAGE]

<PAGE>

                                        Name of Institution: LaSalle Bank
                                        National Association

                                        By /s/ Kevin P. Costello
                                           -------------------------------------
                                        Name: Kevin P. Costello
                                        Title: Senior Vice President

                                        Name of Institution: Mizuho Corporate
                                        Bank, Ltd.

                                        By /s/ Noel Purcell
                                           -------------------------------------
                                        Name: Noel Purcell
                                        Title: Senior Vice President

                                        Name of Institution: THE NORTHERN TRUST
                                        COMPANY

                                        By /s/ Peter J. Hallan
                                           -------------------------------------
                                        Name: Peter J. Hallan
                                        Title: Vice President

                                        Name of Institution: The Royal Bank of
                                        Scotland plc:

                                        By /s/ Peter Yetman
                                           -------------------------------------
                                        Name: Peter Yetman
                                        Title: Senior Vice President

                        [AMENDMENT NO. 1 SIGNATURE PAGE]

<PAGE>

                                        Name of Institution: Union Bank of
                                        California, N.A.

                                        By /s/ Albert W. Kelley
                                           -------------------------------------
                                        Name: Albert W. Kelley
                                        Title: Vice President

                        [AMENDMENT NO. 1 SIGNATURE PAGE]<PAGE>

                                  EXHIBIT 10.31

                                 USG CORPORATION
                           DEFERRED COMPENSATION PLAN

                         (Effective as of April 1, 2007)

                                    SECTION 1

                                  INTRODUCTION

1.1 THE PLAN AND ITS EFFECTIVE DATE

     The USG Corporation Deferred Compensation Plan is established effective as
of April 1, 2007. Defined terms used herein shall have the meaning given such
terms in Section 2.

1.2 PURPOSE

     (a)  The Company has established this Plan to allow Eligible Employees to
          defer compensation as described herein. The Plan is intended to be a
          top-hat plan described in Section 201(2) of ERISA.

     (b)  Amounts deferred under the Plan are subject to the provisions of
          Section 409A of the Code; accordingly, as applied to those amounts,
          the Plan shall at all times be interpreted and administered so that it
          is consistent with such Code section notwithstanding any provision of
          the Plan to the contrary.

1.3 ADMINISTRATION

     The Plan shall be administered by the Committee. The Committee shall have
the powers set forth in the Plan and the complete discretionary power to
interpret its provisions. Any decisions of the Committee shall be final and
binding on all persons with regard to the Plan. The Committee may delegate its
authority hereunder to such officers, employees or representatives of the
Company as it may deem appropriate.

1.4 PLAN YEAR

     The Plan shall be administered on the basis of the Plan Year.

                                    SECTION 2

                                   DEFINITIONS

     "Annual Base Salary" means the regular rate of compensation to be paid to
the Eligible Employee for services rendered during the Plan Year excluding
severance or termination

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payments, commissions, foreign service payments, payments for consulting
services, incentive awards, bonuses and such other unusual or extraordinary
payments as the Committee may determine.

     "Bonus" means an Eligible Employee's Bonus (whether annual or quarterly or
other period) due under any short-term incentive plan of the Company or an
Employer.

     "Beneficiary" means the individual(s) or entity designated by a Participant
to receive the balance of the Participant's Deferral Account in the event of the
Participant's death prior to the payment of the Participant's entire Deferral
Account. To be effective, any Beneficiary designation shall be filed in such
manner as prescribed by the Committee. A Participant may revoke an existing
Beneficiary designation by filing another Beneficiary designation in such manner
as prescribed by the Committee. The latest Beneficiary designation received by
the Committee shall be controlling. If no Beneficiary is named by a Participant
the Beneficiary shall be the Participant's beneficiary under the Investment
Plan. If no Beneficiary is named under the Investment Plan or the Participant
survives all of his Beneficiaries, the Deferral Account shall be paid in
accordance with rules provided or established under the Investment Plan for the
payment of accounts in such Plan where there is no living beneficiary.

     "Change in Control" means the occurrence after April 1, 2007 of any of the
following events:

          (i) any individual, entity or group (within the meaning of Section
          13(d)(3) or 14(d)(2) of the Exchange Act) (a "Person") is or becomes
          the beneficial owner (within the meaning of Rule 13d-3 promulgated
          under the Exchange Act) of 20% or more of the combined voting power of
          the then-outstanding Voting Stock of the Company; provided, however,
          that:

          (1) for purposes of this definition, the following acquisitions shall
          not constitute a Change in Control: (A) any acquisition of Voting
          Stock of the Company directly from the Company that is approved by a
          majority of the Incumbent Directors, (B) any acquisition of Voting
          Stock of the Company by the Company or any Subsidiary, (C) any
          acquisition of Voting Stock of the Company by the trustee or other
          fiduciary holding securities under any employee benefit plan (or
          related trust) sponsored or maintained by the Company or any
          Subsidiary, and (D) any acquisition of Voting Stock of the Company by
          any Person pursuant to a Business Transaction that complies with
          clauses (A), (B) and (C) of paragraph (iii) below;

          (2) if any Person is or becomes the beneficial owner of 20% or more of
          combined voting power of the then-outstanding Voting Stock of the
          Company as a result of a transaction described in clause (A) of
          paragraph (i)(1) above and such Person thereafter becomes the
          beneficial owner of any additional shares of Voting Stock of the
          Company representing 1% or more of the then-outstanding Voting Stock
          of the Company, other than in an acquisition directly from the Company
          that is approved by a majority of the Incumbent Directors or other
          than as a result of a stock dividend, stock

                                      -2-

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          split or similar transaction effected by the Company in which all
          holders of Voting Stock are treated equally, such subsequent
          acquisition shall be treated as a Change in Control;

          (3) a Change in Control will not be deemed to have occurred if a
          Person is or becomes the beneficial owner of 20% or more of the Voting
          Stock of the Company as a result of a reduction in the number of
          shares of Voting Stock of the Company outstanding pursuant to a
          transaction or series of transactions that is approved by a majority
          of the Incumbent Directors unless and until such Person thereafter
          becomes the beneficial owner of any additional shares of Voting Stock
          of the Company representing 1% or more of the then-outstanding Voting
          Stock of the Company, other than as a result of a stock dividend,
          stock split or similar transaction effected by the Company in which
          all holders of Voting Stock are treated equally; and

          (4) if at least a majority of the Incumbent Directors determine in
          good faith that a Person has acquired beneficial ownership of 20% or
          more of the Voting Stock of the Company inadvertently, and such Person
          divests as promptly as practicable but no later than the date, if any,
          set by the Incumbent Board a sufficient number of shares so that such
          Person beneficially owns less than 20% of the Voting Stock of the
          Company, then no Change in Control shall have occurred as a result of
          such Person's acquisition; or

          (ii) a majority of the Board ceases to be comprised of Incumbent
          Directors; or

          (iii) the consummation of a reorganization, merger or consolidation,
          or sale or other disposition of all or substantially all of the assets
          of the Company or the acquisition of the stock or assets of another
          corporation, or other transaction (each, a "Business Transaction"),
          unless, in each case, immediately following such Business Transaction
          (A) the Voting Stock of the Company outstanding immediately prior to
          such Business Transaction continues to represent (either by remaining
          outstanding or by being converted into Voting Stock of the surviving
          entity or any parent thereof), more than 60% of the combined voting
          power of the then outstanding shares of Voting Stock of the entity
          resulting from such Business Transaction (including, without
          limitation, an entity which as a result of such transaction owns the
          Company or all or substantially all of the Company's assets either
          directly or through one or more subsidiaries), (B) no Person (other
          than the Company, such entity resulting from such Business
          Transaction, or any employee benefit plan (or related trust) sponsored
          or maintained by the Company, any Subsidiary or such entity resulting
          from such Business Transaction) beneficially owns, directly or
          indirectly, 20% or more of the combined voting power of the then
          outstanding shares of Voting Stock of the entity resulting from such

                                      -3-

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          Business Transaction, and (C) at least a majority of the members of
          the Board of Directors of the entity resulting from such Business
          Transaction were Incumbent Directors at the time of the execution of
          the initial agreement or of the action of the Board providing for such
          Business Transaction; or

          (iv) approval by the stockholders of the Company of a complete
          liquidation or dissolution of the Company, except pursuant to a
          Business Transaction that complies with clauses (A), (B) and (C) of
          paragraph (iii) above.

          Notwithstanding anything in this Agreement to the contrary, a Change
          in Control shall not be deemed to have occurred as a result of an
          acquisition or the holding of Voting Stock of the Company permitted by
          Section 2(a) of the Shareholder's Agreement entered into as of January
          30, 2006, by and between the Company and Berkshire Hathaway, Inc.

          The following definitions apply for purposes of the foregoing
          definition of Change of Control:

          "Incumbent Directors" means the individuals who, as of the date of
          this Agreement, are Directors of the Company and any individual
          becoming a Director subsequent to the date of this Agreement whose
          election, nomination for election by the Company's stockholders, or
          appointment, was approved by a vote of at least two-thirds of the then
          Incumbent Directors (either by a specific vote or by approval of the
          proxy statement of the Company in which such person is named as a
          nominee for director, without objection to such nomination); provided,
          however, that an individual shall not be an Incumbent Director if such
          individual's election or appointment to the Board occurs as a result
          of an actual or threatened election contest (as described in Rule 14a
          12(c) of the Exchange Act) with respect to the election or removal of
          Directors or other actual or threatened solicitation of proxies or
          consents by or on behalf of a Person other than the Board.

          "Subsidiary" means a corporation, company or other entity (i) at least
          50 percent of whose outstanding shares or securities (representing the
          right to vote for the election of directors or other managing
          authority) are, or (ii) which does not have outstanding shares or
          securities (as may be the case in a partnership, joint venture or
          unincorporated association), but at least 50 percent of whose
          ownership interest representing the right generally to make decisions
          for such other entity is, now or hereafter, owned or controlled,
          directly or indirectly, by the Company.

          "Voting Stock" means at any time, the then-outstanding securities
          entitled to vote generally in the election of directors of the
          Company.

                                      -4-

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     "Code" means the Internal Revenue Code of 1986, as amended.

     "Committee" means the Pension and Investment Committee of the Company.

     "Company" means USG Corporation.

     "Deferral" means the amount deferred pursuant to a Deferral Election.

     "Deferral Account" means the bookkeeping account established in the name of
the Participant to hold all amounts deferred pursuant to the Participant's
Deferral Elections.

     "Deferral Election" means a Participant's irrevocable election to defer
receipt of a Bonus and/or Annual Base Salary for a Plan Year.

     "Effective Date" means the effective date of the Plan, April 1, 2007.

     "Eligible Employee" means for any Plan Year each employee of an Employer
(a) who is in a salary band of 12 or higher and (b) whose annualized base salary
for the Plan Year is equal to or greater than the limit in effect under Internal
Revenue Code Section 414(q)(1)(B) for the calendar year preceding the Plan Year.

     "Employer" means any subsidiary or affiliate of the Company incorporated
under the laws of any state in the United States that has adopted the Plan with
the consent of the Committee.

     "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended.

     "Investment Plan" means the USG Corporation Investment Plan.

     "Key Employee" means an employee who meets the key employee requirements of
Code Section 416(i)(1)(A)(i), (ii) or (iii) (applied in accordance with the
regulations thereunder and disregarding Code Section 416(i)(5)) at any time
during the 12-month period ending each December 31st. If an employee meets the
Key Employee requirements as of any December 31st, the person is treated as a
Key Employee for the 12-month period beginning on the March 1st following that
December 31st.

     "Market Value" of common stock means the closing price for Company common
stock on the applicable day on the New York Stock Exchange Composite Transaction
Tape.

     "Participant" means any Eligible Employee who makes a Deferral Election or
has a Deferral Account under the Plan.

     "Plan" means the USG Corporation Deferred Compensation Plan.

     "Plan Year" means the calendar year; provided the initial Plan Year shall
be the period April 1, 2007 through December 31, 2007.

     "Stock Equivalent Account" means the investment alternative under which a
Participant's Deferral Account is treated as if it is invested in Company common
stock equivalents.

                                      -5-

<PAGE>

     "Trust" means the Grantor Trust or Trusts, if any, that the Company or an
Employer may maintain to hold assets to be used for payment of benefits under
the Plan.

     "Unforeseeable Financial Emergency" means a severe financial hardship to
the Participant resulting from (i) an illness or accident of the Participant or
Beneficiary or the spouse or dependent(as defined in Code Section 152(a) of the
Participant or Beneficiary; (ii) loss of the Participant or Beneficiary's
property due to casualty; or (iii) such other similar extraordinary and
unforeseeable circumstances arising as a result of events beyond the control of
the Participant as determined by the Committee.

                                    SECTION 3

                      PARTICIPATION AND DEFERRAL ELECTIONS

3.1 PARTICIPATION

     Subject to the conditions and limitations of the Plan, any Eligible
Employee who makes a Deferral Election as described in Section 3.2 shall become
a Participant in the Plan and shall remain a Participant until the entire
balance of the Deferral Account is distributed to the Participant.

3.2 RULES FOR DEFERRAL ELECTIONS

     Any Eligible Employee may make a Deferral Election for a Plan Year in
accordance with the rules set forth below and such additional administrative
rules provided from time to time by the Committee.

     (a)  ELIGIBILITY. An Eligible Employee shall be eligible to make a Deferral
          Election only if he or she is an active, regular, full-time employee
          on the date such election is made.

     (b)  DEFERRAL AMOUNTS. For each Plan Year, an Eligible Employee may make no
          more than one Deferral Election for each of the Eligible Employee's
          Bonus and Annual Base Salary in the amounts set forth below:

          (i)  In whole percentage points, all or any portion, up to and
               including 50%, of the Eligible Employee's Annual Base Salary.

          (ii) In whole percentage points, all or any portion, up to and
               including 75%, of the Eligible Employee's Bonus.

          An Eligible Employee's Deferral Elections for a Plan Year shall remain
          in effect for subsequent Plan Years unless and until such Elections
          are changed or revoked in accordance with Paragraph 3.2(c) or (d)
          below.

     (c)  TIMING AND OTHER REQUIREMENTS FOR DEFERRAL ELECTIONS. All Deferral
          Elections must be made in such form as the Committee may prescribe and
          must be received by the Committee no later than the date specified by
          the Committee.

                                      -6-

<PAGE>

          With respect to deferrals of Annual Base Salary, except as specified
          in paragraph (d) below, the date specified by the Committee may be no
          later than the end of the calendar year preceding the calendar year in
          which the Annual Base Salary is anticipated to be paid. With respect
          to deferrals of Bonuses, the date specified by the Committee may be no
          later than the end of the calendar year preceding the beginning of the
          measurement period for such Bonus.

     (d)  ELECTIONS GENERALLY IRREVOCABLE. Deferral Elections shall be
          irrevocable; provided, that if a Participant takes a hardship
          withdrawal on account of an Unforeseeable Financial Emergency, as
          determined by the Committee, then the Participant's Deferral Elections
          then in effect shall be revoked with respect to all amounts not
          previously deferred; however, such Participant may make a new Deferral
          election in the following Plan Year.

     (e)  INVESTMENT ELECTION. As part of each Deferral Election, an Eligible
          Employee must elect the investment alternatives that shall apply to
          the Deferral in accordance with Section 4.2.

     (f)  PENSIONABLE EARNINGS. Compensation deferred under the Plan will not be
          considered pensionable earnings for the computation of benefits under
          the IRS-qualified USG Corporation Retirement Plan or the USG
          Corporation Investment Plan. Compensation deferrals will be considered
          pensionable earnings for the computation of benefits under the
          non-qualified USG Corporation Supplemental Retirement Plan.

                                    SECTION 4

                                DEFERRAL ACCOUNTS

4.1 DEFERRAL ACCOUNTS

     All amounts deferred pursuant to a Participant's Deferral Elections under
the Plan shall be allocated to the Participant's Deferral Account. Deferrals
shall be credited to the Deferral Account as soon as practicable following the
date on which, in the absence of a Deferral Election, the Participant would
otherwise have received the Deferral, in accordance with rules established by
the Committee.

4.2 INVESTMENT ALTERNATIVES AND ADJUSTMENT OF DEFERRAL ACCOUNTS

     A Participant must make an investment election at the time of each Deferral
Election. The investment election must be made pursuant to such rules as the
Committee may prescribe, subject to Section 4.3, and shall designate the portion
of the Deferral which is to be treated as invested in each investment
alternative. Subject to the Committee's discretionary right to change the
investment alternatives in the future, the investment alternatives shall be the
same as the alternatives in the Investment Plan and shall include a Stock
Equivalent Account. A Participant's Deferrals shall be treated as invested in
the applicable investment alternatives, effective in accordance with rules
established by the Committee. A Participant's Deferral Account shall be adjusted
at such time and in such manner as accounts of participants in the

                                      -7-

<PAGE>

Investment Plan are adjusted to reflect the balances that would have been in
such accounts if they had in fact been maintained under the Investment Plan
(including an adjustment to represent the fees and expenses charged to accounts
under the Investment Plan).

4.3 INVESTMENT ELECTIONS AND CHANGES

     A Participant's investment elections shall be subject to the following
rules:

     (a)  If the Participant fails to make an investment election with respect
          to a Deferral, the Deferral shall be deemed to be invested in the
          investment fund that is the default fund under the Investment Plan.

     (b)  A Participant may elect to transfer amounts from one investment
          alternative to another by filing an investment change election with
          the Committee prior to the date the change is to become effective, in
          accordance with rules established by the Committee.

     (c)  The plan fiduciaries are not liable for any losses incurred by the
          Participant as a result of the allocation of accounts under the Plan.

4.4 VESTING

A Participant shall be fully vested at all times in the balance of his or her
Deferral Account.

                                    SECTION 5

                               PAYMENT OF BENEFITS

5.1 TIME AND METHOD OF PAYMENT

     Payment of a Participant's Deferral Account shall be made in a single lump
sum as soon as practicable, but not later than 60 days, following the date the
Participant separates from service with all Employers and their subsidiaries and
affiliates. Notwithstanding any other provision of the Plan to the contrary,
distributions to be made to a Key Employee upon retirement or other termination
of employment shall not be made before the date that is six (6) months after the
Key Employee's retirement or other separation from service.

5.2 PAYMENT UPON DEATH OF A PARTICIPANT

     In the event a Participant dies before all amounts credited to the
Participant's Deferral Account have been paid, payment of the Participant's
Deferral Account shall be made to the Participant's Beneficiary in a single lump
sum payment as soon as practicable after the Participant's death.

5.3 FORM OF PAYMENT

     Payment shall be made in cash.

                                      -8-

<PAGE>

5.4 HARDSHIP WITHDRAWAL

     If the Committee or its designee determines that a Participant has incurred
an Unforeseeable Financial Emergency, the Participant may withdraw in cash the
portion of the balance of his Deferral Account needed to satisfy the
Unforeseeable Financial Emergency, to the extent that the Unforeseeable
Financial Emergency may not be relieved through reimbursement or compensation by
insurance or otherwise or by liquidation of the Participant's assets, to the
extent the liquidation of such assets would not itself cause severe financial
hardship. A hardship withdrawal on account of an Unforeseeable Financial
Emergency shall be paid as soon as possible following the date on which the
withdrawal is approved.

5.5 WITHHOLDING OF TAXES AND OTHER AMOUNTS

     The Company shall withhold any applicable Federal, state or local income
tax from payments due under the Plan. The Company may also be required to
withhold Social Security taxes, including the Medicare portion of such taxes,
and any other employment taxes as necessary to comply with applicable laws. The
Company may withhold any taxes from any payments made to the Participant,
whether under this Plan or otherwise, or require direct payment of such
withholding taxes by the Participant to the Company. The Company may also
withhold payment to the extent necessary to provide for a Participant's
participation in employee benefit and other compensation plans and arrangements
maintained by the Company.

                                    SECTION 6

                                CHANGE OF CONTROL

     For a period of three years immediately following a Change of Control, no
amendment of the Plan may be adopted that would adversely affect the rights of
any Participant or Beneficiary; the Plan may not be terminated; and the Plan may
not be amended to change the definition of Eligible Employee, to reduce the
amount which an Eligible Employee may defer, to reduce the amount by which
Deferred Accounts are adjusted under Section 4.2 and 4.3 to reflect hypothetical
earnings, or to delay payment under Section 5.

                                    SECTION 7

                                  MISCELLANEOUS

7.1 FUNDING

     Benefits payable under the Plan to any Participant shall be paid directly
by the Participant's Employer (including the Company if the Participant is
employed by the Company). The Company and the Employers shall not be required to
fund, or otherwise segregate assets to be used for payment of benefits under the
Plan. Notwithstanding the foregoing, the Company and the Employers, in the
discretion of the Committee, may maintain one or more Trusts. The assets of any
such Trusts with respect to benefits payable to the employees of each Employer
shall remain the assets of such Employer subject to the claims of its general
creditors. Any payments by a Trust of benefits provided to a Participant under
the Plan shall be considered

                                      -9-

<PAGE>

payment by the Company or the Employer and shall discharge the Company or the
Employer of any further liability under the Plan for such payments.

7.2 ACCOUNT STATEMENTS

     As soon as practical after the end of each calendar quarter (or after such
other date or dates as the Committee, in its discretion, may designate), each
Participant shall be provided with a statement of the balance of his or her
Deferral Account hereunder as of the last day of such calendar quarter (or as of
such other dates as the Committee, in its discretion, may designate).

7.3 EMPLOYMENT RIGHTS

     Establishment of the Plan shall not be construed to give any Eligible
Employee the right to be retained in the Company's service or to any benefits
not specifically provided by the Plan.

7.4 INTERESTS NOT TRANSFERABLE

     No benefit payable at any time under the Plan shall be subject in any
manner to alienation, sale, transfer, assignment, pledge, attachment, or other
legal process, or encumbrance of any kind, except (a) as provided for under the
sections of a Company plan or agreement that state the Company's authority to
demand repayment of amounts owed to the Company pursuant to those sections, (b)
as required for purposes of withholding of any tax under the laws of the United
States or any state or locality, or (c) pursuant to a court-approved property
settlement agreement issued incident to the Participant's divorce. Any attempt
to alienate, sell, transfer, assign, pledge or otherwise encumber any such
benefits, whether currently or thereafter payable, shall be void. No person
shall, in any manner, be liable for or subject to the debts or liabilities of
any person entitled to such benefits. If any person shall attempt to, or shall
alienate, sell, transfer, assign, pledge or otherwise encumber his or her
benefits under the Plan, or if by any reason of his or her bankruptcy or other
event happening at any time, such benefits would devolve upon any other person
or would not be enjoyed by the person entitled thereto under the Plan, then the
Committee, in its discretion, may terminate the interest in any such benefits of
the person entitled thereto under the Plan and hold or apply them for or to the
benefit of such person entitled thereto under the Plan or his or her spouse,
children or other dependents, or any of them, in such manner as the Committee
may deem proper.

7.5 FORFEITURES AND UNCLAIMED AMOUNTS

     Unclaimed amounts shall consist of the amounts of the Deferral Account of a
Participant that are not distributed because of the Committee's inability, after
a reasonable search, to locate a Participant or his Beneficiary, as applicable,
within a period of two (2) years after the Distribution Date upon which the
payment of any benefits becomes due. Unclaimed amounts shall be forfeited at the
end of such two-year period. These forfeitures will reduce the obligations of
the Company under the Plan and the Participant or Beneficiary, as applicable,
shall have no further right to his Deferral Account.

                                      -10-

<PAGE>

7.6 CONTROLLING LAW

     The law of Illinois, without regard to any state's choice of law
principles, shall be controlling in all matters relating to the Plan to the
extent not preempted by ERISA.

7.7 GENDER AND NUMBER

     Words in the masculine gender shall include the feminine, and the plural
shall include the singular and the singular shall include the plural.

7.8 ACTION BY THE COMPANY

     Except as otherwise specifically provided herein, any action required of or
permitted by the Company under the Plan shall be by resolution of the Board of
Directors of the Company or by action of any member of the Committee or
person(s) authorized by resolution of the Board of Directors of the Company.

                                   SECTION 8

                             EMPLOYER PARTICIPATION

     Any subsidiary or affiliate of the Company incorporated under the laws of
any state in the United States may, with the approval of the Committee and under
such terms and conditions as the Committee may prescribe, adopt the Plan. The
Committee may amend the Plan as necessary or desirable to reflect the adoption
of the Plan by an Employer; provided, however, that an adopting Employer shall
not have the authority to amend or terminate the Plan under Section 8.

                                   SECTION 9

                            AMENDMENT AND TERMINATION

     The Company intends the Plan to be permanent, but reserves the right at any
time by action of its Board of Directors (or its delegate) to modify, amend or
terminate the Plan; provided, however, that any amendment or termination of the
Plan shall not reduce or eliminate any Deferral Account accrued through the date
of such amendment or termination. Upon termination of the Plan, the Committee
may provide that all Deferral Accounts will be distributed on a date selected by
the Committee.

                                      -11-

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