EXHIBIT 10.9

                                 USG CORPORATION

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                              Non-Employee Director
                              Compensation Program

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                             Effective July 1, 2007

     Effective July 1, 2007, the compensation program for the non-employee
directors of USG Corporation, a Delaware corporation ("USG"), is revised so that
non-employee directors shall be entitled to receive the compensation described
below.

     1.   An annual retainer of $160,000 payable as follows:

          a.   $80,000 in cash in equal quarterly installments, payable on the
               last business day of each calendar quarter commencing with the
               third quarter of 2007; and

          b.   $80,000 in cash or, at the director's election effected by
               written notice to the Corporate Secretary of USG delivered at
               least 10 days prior to the payment date, in an equivalent amount
               of shares of USG common stock on July 1,2007 and on December 31
               of each year commencing December 31, 2008.

     2.   An additional cash retainer of $10,000 per year for the chairs of
          Board committees, payable in equal quarterly installments on the last
          business day of each calendar quarter commencing with the third
          quarter of 2007.

     3.   Non-employee directors will be allowed to defer any or all of their
          compensation pursuant to the terms of the USG Corporation Deferred
          Compensation Program for Non-Employee Directors (the "Deferral
          Program"), as it may be amended from time to time.

     4.   The portion of the annual retainer referred to in 1.b above payable on
          July 1, 2007 will be pro-rated and paid (a) as provided in Section 9.4
          of the USG Corporation Stock Compensation Program for Non-Employee
          Directors (the "Stock Program") for any non-employee director whose
          service as a director terminates prior to July 1, 2007 and (b) as
          provided in Section 9.1 of the Stock Program for any non-employee
          director whose service as a director commenced after July 1, 2006.



Non-Employee Director
Compensation Program
Page 2


     5.   The portion of the annual retainer referred to in 1.b. above payable
          on December 31, 2008 and on December 31 of any year subsequent to 2007
          will be prorated (a) for any non-employee director whose service as a
          director terminates between January 1 and December 31 of that year,
          based on the number of full months of service since January 1 of that
          year and prior to the termination of service and (b) for any
          non-employee director whose service as a director begins after January
          1 and before December 31 of that year, based on the number of full
          months in that year after the director's service begins. Any prorated
          payment due to a non-employee director whose service as a director has
          terminated will be paid in a lump sum within 30 days after termination
          of service or, if the director made a deferral election pursuant to
          the Deferral Program and elected to receive installment payments, when
          those installment payments are due.

     6.   For purposes of 1.b, 4 and 5 above, shares of USG common stock will be
          valued at their Fair Market Value, as defined in the Deferral Program,
          on the last trading day preceding the date on which the shares are to
          be delivered, assuming no deferral election is made with respect to
          those shares.

     7.   No meeting, consulting or director education fees will be payable.

     8.   Non-employee directors will be reimbursed for out-of-pocket expenses
          incurred in connection with attending meetings and other activities.

     9.   As a guideline, non-employee directors are expected to own shares of
          USG common stock and deferred stock units with a value equal to at
          least three times the annual retainer within five years of commencing
          service as a director.

     10.  The Stock Program will terminate at the close of business on December
          31, 2007, except that it will continue to apply with respect to
          applicable compensation earned by non-employee directors for periods
          of service prior to July 1, 2007 and the Prior Programs, as that term
          is defined in the Stock Program, will continue to apply with respect
          to applicable compensation earned by non-employee directors for
          periods of service prior to July 1, 1997.