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
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             (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))


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