SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) January 24, 2003. USG Corporation -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Commission File Number: 1-8864 ------ Delaware 36-3329400 ------------------------------------ ------------------------ (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 125 South Franklin Street, Chicago, Illinois 60606-4678 --------------------------------------------- ---------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (312) 606-4000 ---------------------- Item 5. OTHER EVENTS. ------------ On January 24, 2003, USG Corporation ("USG") issued a press release announcing that it has reduced the amount of its Debtor-In-Possession credit facility. A copy of the foregoing press release is attached hereto as Exhibit 99(a) and is hereby incorporated by reference. SIGNATURES Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. USG CORPORATION Registrant Date: January 24, 2003 By: /s/ Richard H. Fleming ------------------------------ Its: Executive Vice President and Chief Financial Officer EXHIBIT INDEX 99(a) Press release, dated January 24, 2003, issued by USG Corporation