UNITED STATES 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): September 24, 2007 United States Steel Corporation -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Delaware 1-16811 25-1897152 --------------- ---------------------- ------------------- (State or other (Commission File (IRS Employer jurisdiction of Number) Identification No.) incorporation) 600 Grant Street, Pittsburgh, PA 15219-2800 ---------------------------------- ---------- (Address of principal executive (Zip Code) offices) (412) 433-1121 ------------------------------ (Registrant's telephone number, including area code) -------------------------------------------------------------------------------- Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) 2 Item 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year On September 24, 2007, the Board of Directors approved amendments to the Corporation's By-Laws. These amendments: (i) clarify that the shares of capital stock of the Corporation may be either certificated or uncertificated; (ii) modify the signature requirements for stock certificates; and (iii) establish procedures to be followed in the event that stock certificates are lost, stolen or destroyed. A copy of the amended and restated By-Laws is attached as Exhibit 3.1. Item 9.01. Financial Statements and Exhibits (d) Exhibits 3.1 Amended and Restated By-Laws of United States Steel Corporation SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. UNITED STATES STEEL CORPORATION By /s/ Larry G. Schultz --------------------------- Larry G. Schultz Vice President & Controller Dated: September 28, 2007