Exhibit 3(c)


                                USX CORPORATION
                    AMENDMENT TO USX BY-LAWS ADOPTED BY THE
                    BOARD OF DIRECTORS ON FEBRUARY 23, 1999
                    ---------------------------------------
                                        

ARTICLE I.  Stockholders

Section 3.  Nomination of Directors.

     Only persons who are nominated in accordance with the following procedures
shall be eligible for election to the Board of Directors.  Nominations for
election to the Board of Directors of the Corporation at a meeting of
stockholders may be made by the Board of Directors or by any stockholder of
record of the Corporation entitled to vote generally for the election of
directors at such meeting who complies with the notice procedures set forth in
this Section 3.  Such nominations, other than those made by or on behalf of the
Board of Directors, shall be made by notice in writing delivered or mailed by
first class United States mail, postage prepaid, to the Secretary, and received
not less than 45 days nor more than 75 days prior to the first anniversary of
the date on which the Corporation first mailed its proxy materials for the
preceding year's annual meeting of stockholders; provided, however, that if the
date of the annual meeting is advanced more than 30 days prior to or delayed by
more than 30 days after the anniversary of the preceding year's annual meeting,
notice by the stockholder to be timely must be so delivered not later than the
close of business on the later of (i) the 90th day prior to such annual meeting
or (ii) the 10th day following the day on which public announcement of the date
of such meeting is first made.  Such notice shall set forth (a) as to each
proposed nominee (i) the name, age, business address and, if known, residence
address of each such nominee, (ii) the principal occupation or employment of
each such nominee, (iii) the number of shares of each class of the capital stock
of the Corporation which are beneficially owned by each such nominee, and (iv)
any other information concerning the nominee that must be disclosed as to
nominees in proxy solicitations pursuant to Regulation 14A under the Securities
Exchange Act of 1934, as amended (including such person's written consent to be
named as a nominee and to serve as a director if elected); and (b) as to the
stockholder giving the notice (i) the name and address, as they appear on the
Corporation's books, of such stockholder and (ii) the number of shares of each
class of the capital stock of the Corporation which are beneficially owned by
such stockholder.  The Corporation may require any proposed nominee to furnish
such other information as may reasonably be required by the Corporation to
determine the eligibility of such proposed nominee to serve as a director of the
Corporation.

     The Chairman of the meeting may, if the facts warrant, determine and
declare to the meeting that a nomination was not made in accordance with the
foregoing procedure, and if he should so determine, he shall so declare to the
meeting and the defective nomination shall be disregarded.

Section 4.  Notice of Business at Annual Meetings

     At an annual meeting of the stockholders, only such business shall be
conducted as shall have been properly brought before the meeting.  To be
properly brought before an annual meeting, business must be (a) specified in the
notice of meeting (or any supplement thereto) given by or at the direction of
the Board of Directors, (b) otherwise properly brought before the meeting by or
at the direction of the Board of Directors, or (c) otherwise properly brought
before the meeting by a stockholder of record.  For business to be properly
brought before an annual meeting by a stockholder of record, if such business
relates to the election of directors of the Corporation, the procedures in
Article I, Section 3 must be complied with.  If such business relates to any
other matter, the stockholder must have given timely notice thereof in writing
to the Secretary.  To be timely, a stockholder's notice must be delivered to or
mailed and received at the principal executive offices of the Corporation not
less than 45 days nor more than 75 days prior to the first anniversary of the
date on which the Corporation first mailed its proxy materials for the preceding
year's annual meeting of stockholders; provided, however, that if the date of
the annual meeting is advanced more than 30 days prior to or delayed by more
than 30 days after the anniversary of the preceding year's annual meeting,
notice by the stockholder to be timely must be so delivered not later than the

 
Exhibit 3(c)  (Contd.)


close of business on the later of (i) the 90th day prior to such annual meeting
or (ii) the 10th day following the day on which public announcement of the date
of such meeting is first made.  A stockholder's notice to the Secretary shall
set forth as to each matter the stockholder proposes to bring before the annual
meeting (a) a brief description of the business desired to be brought before the
annual meeting and the reasons for conducting such business at the annual
meeting, (b) the name and address, as they appear on the Corporation's books, of
the stockholder proposing such business, (c) the number of shares of each class
of the capital stock of the Corporation which are beneficially owned by the
stockholder, and (d) any material interest of the stockholder in such business.
Notwithstanding anything in the By-Laws to the contrary, no business shall be
conducted at any annual meeting except in accordance with the procedures set
forth in this Section 4 and in Section 3 of this Article I, except that any
stockholder proposal which complies with Rule 14a-8 of the proxy rules (or any
successor provision) promulgated under the Securities Exchange Act of 1934, as
amended, and is to be included in the Corporation's proxy statement for an
annual meeting of stockholders shall be deemed to comply with the requirements
of this Section 4.