UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 11-K

ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

(Mark one)

ý		Annual Report pursuant to 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31, 2006

Or

o		Transition report pursuant to Section 15(d) of the Securities Exchange Act of 1934

For the transition period from                                to                               

Commission file number: 1-8864.

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

USG CORPORATION INVESTMENT PLAN (formerly USG CORPORATION INVESTMENT PLAN FOR SALARIED EMPLOYEES)

B. Name of issuer of the securities held pursuant to the plan and address of its principal executive office:

USG CORPORATION, 550 WEST ADAMS STREET, CHICAGO, ILLINOIS 60661-3676

 

 

REQUIRED INFORMATION

     Plan financial statements and schedules prepared in accordance with the financial reporting requirements of ERISA are furnished herewith as Exhibit 99.1 and incorporated by reference.

SIGNATURES

     Pursuant to the requirements of the Securities and Exchange Act of 1934, the USG Corporation Pension and Investment Committee has duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

      

Date: June 20, 2007

EXHIBIT INDEX

Exhibit No.		Exhibit
23		Consent of Independent Registered Public Accountants.
99.1		USG Corporation Investment Plan — Report on Audited Financial Statements and Supplemental Schedules for the Years Ended December 31, 2006 and 2005.