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                                                                 EXHIBIT 3.1 (d)



                           CERTIFICATE OF DESIGNATION

                                       of

                 SERIES B JUNIOR PARTICIPATING PREFERRED STOCK

                                       of

                                 TENNECO INC.

             Pursuant to Section 151 of the General Corporation Law
                            of the State of Delaware


     TENNECO INC.,  a corporation organized and existing under the General 
Corporation Law of the State of Delaware, in accordance with the provisions of 
Section 103 thereof, DOES HEREBY CERTIFY:

     That pursuant to the authority vested in the Board of Directors in 
accordance with the provisions of the Restated Certificate of Incorporation of 
the said Corporation, the said Board of Directors on September 9, 1998 adopted 
the following resolution creating a series of 2,000,000 shares of Preferred 
Stock designated as "Series B Junior Participating Preferred Stock":


          RESOLVED, that pursuant to the authority vested in the Board of 
     Directors of  this Corporation in accordance with the provisions of the
     Restated Certificate  of Incorporation, a series of Preferred Stock, par
     value $.01 per share, of the  Corporation be and hereby is created, and
     that the designation and number of  shares thereof and the voting and
     other powers, preferences and relative,  participating, optional or other
     rights of the shares of such series and the  qualifications, limitations
     and restrictions thereof are as follows:


                 SERIES B JUNIOR PARTICIPATING PREFERRED STOCK

     1.   Designation and Amount.  There shall be a series of Preferred Stock 
that shall be designated as "Series B Junior Participating Preferred Stock,"    
and the number of shares constituting such series shall be 2,000,000.  Such
number of shares may be increased or decreased by resolution of the Board of
Directors;  provided, however, that no decrease shall reduce the number of
shares of Series B Junior Participating Preferred Stock to less than the number
of shares then issued and outstanding plus the number of shares issuable upon
exercise of outstanding rights, options or warrants or upon conversion of
outstanding securities issued by the Corporation.


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        2.      Dividends and Distribution.

                (A)  Subject to the prior and superior rights of the holders of
any shares of any class or series of stock of the Corporation ranking prior and
superior to the shares of Series B Junior Participating Preferred Stock with
respect to dividends, the holders of shares of Series B Junior Participating
Preferred Stock, in preference to the holders of shares of any class or series
of stock of the Corporation ranking junior to the Series B Junior Participating
Preferred Stock in respect thereof, shall be entitled to receive, when, as and
if declared by the Board of Directors out of funds legally available for the
purpose, quarterly dividends payable in cash on the first day of January,
April, July and October, in each year (each such date being referred to herein
as a "Quarterly Dividend Payment Date"), commencing on the first Quarterly
Dividend Payment Date after the first issuance of a share or fraction of a
share of Series B Junior Participating Preferred Stock, in an amount per share
(rounded to the nearest cent) equal to the greater of (a) $25.00 or (b) the
Adjustment Number (as defined below ) times the aggregate per share amount of
all cash dividends, and the Adjustment Number times the aggregate per share
amount (payable in kind) of all non-cash dividends or other distributions other
than a dividend payable in shares of Common Stock or a subdivision of the
outstanding shares of Common Stock (by reclassification or otherwise), declared
on the Common Stock, par value $.01 per share, of the Corporation (the "Common
Stock") since the immediately preceding Quarterly Dividend Payment Date, or,
with respect to the first Quarterly Dividend Payment Date, since the first
issuance of any share or fraction of a share of Series B Junior Participating
Preferred Stock. The "Adjustment Number" shall initially be 1000. In the event
the Corporation shall at any time after September 21, 1998 (i) declare and pay
any dividend on Common Stock payable in shares of Common Stock, (ii) subdivide
the outstanding Common Stock or (iii) combine the outstanding Common Stock into
a smaller number of shares, then in each such case the Adjustment Number in
effect immediately prior to such event shall be adjusted by multiplying such
Adjustment Number by a fraction the numerator of which is the number of shares
of Common Stock outstanding immediately after such event and the denominator of
which is the number of shares of Common Stock that were outstanding immediately
prior to such event.

                (B)  The Corporation shall declare a dividend or distribution
on the Series B Junior Participating Preferred Stock as provided in paragraph
(A) above immediately after it declares a dividend or distribution on the
Common Stock (other than a dividend payable in shares of Common Stock).

                (C)  Dividends shall begin to accrue and be cumulative on
outstanding shares of Series B Junior Participating Preferred Stock from the
Quarterly Dividend Payment Date next preceding the date of issue of such
shares of Series B Junior Participating Preferred Stock, unless the date of
issue of such shares is prior to the record date for the first Quarterly
Dividend Payment Date, in which case dividends on such shares shall begin to
accrue from the date of issue of such shares, or unless the date of issue is a
Quarterly Dividend Payment Date or is a date after the record date for the
determination of holders of shares of Series B Junior Participating Preferred
Stock entitled to receive a quarterly dividend and before such Quarterly
Dividend Payment Date, in either of which events such dividends shall begin to




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accrue and be cumulative from such Quarterly Dividend Payment Date.  Accrued
but unpaid dividends shall not bear interest.  Dividends paid on the shares of
Series B Junior Participating Preferred Stock in an amount less than the total
amount of such dividends at the time accrued and payable on such shares shall be
allocated pro rata on a share-by-share basis among all such shares at the time
outstanding.  The Board of Directors may fix a record date for the determination
of holders of shares of Series B Junior Participating Preferred Stock entitled
to receive payment of a dividend or distribution declared thereon, which record
date shall be no more than 60 days prior to the date fixed for the payment
thereof.

     3.   Voting Rights. The holders of shares of Series B Junior Participating 
Preferred Stock shall have the following voting rights:

          (A)  Each share of Series B Junior Participating Preferred Stock 
shall entitle the holder thereof to a number of votes equal to the Adjustment 
Number on all matters submitted to a vote of the stockholders of the 
Corporation.

          (B)  Except as otherwise provided herein, in any other Certificate of 
Designation creating a series of Preferred Stock or any similar stock, or by    
law, the holders of shares of Series B Junior Participating Preferred Stock
and the holders of shares of Common Stock and any other capital stock of the
Corporation having general voting rights shall vote together as one class on
all matters submitted to a vote of stockholders of the Corporation.

          (C)  If, at the time of any annual meeting of stockholders for the 
election of directors, the equivalent of six quarterly dividends (whether or 
not consecutive) payable on any share or shares of Series B Junior      
Participating Preferred Stock are in default, the number of directors
constituting the Board  of Directors of the Corporation shall be increased by
two. In addition to voting together with the holders of Common Stock for the
election of other directors of the Corporation, the holders of record of the
Series B Junior Participating Preferred Stock, voting separately as a class to
the exclusion of the holders of Common Stock, shall be entitled at said
meeting of stockholders (and at each subsequent annual meeting of
stockholders), unless all dividends in arrears have been paid or declared and
set apart for payment prior thereto, to vote for the election of two
additional directors of the Corporation, the holders of any Series B Junior
Participating Preferred Stock being entitled to cast that number of votes per
share of Series B Junior Participating Preferred Stock as specified in clause
(A) of this Section 3. Each such additional director shall not be a member of
Class I, Class II or Class III of the Board of Directors of the Company, but
shall serve until the next annual meeting of stockholders for the election of
directors, or until his successor shall be elected and shall qualify, or until
his right to hold such office terminates pursuant to the provisions of this
Section 3(C).  Until the default in payments of all dividends which permitted   
the election of said directors shall cease to exist, any director who shall
have been so elected pursuant to the next preceding sentence may be removed at
any time without cause only by the affirmative vote of the holders of the
shares of Series B Junior Participating Preferred Stock at the time entitled to
cast a majority of the votes entitled to be cast for the election of any such
director at a special meeting of such holders called for that purpose, and any
vacancy thereby created may be filled by the vote of such holders. If and when
such default shall cease to exist,


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the holders of the Series B Junior Participating Preferred Stock shall be
divested of the foregoing special voting rights, subject to revesting in the
event of each and every subsequent like default in payments of dividends. Upon
the termination of the foregoing special voting rights, the terms of office of
all persons who may have been elected directors pursuant to said special voting
rights shall forthwith terminate, and the number of directors constituting the
Board of Directors shall be reduced by two. The voting rights granted by this
Section 3(C) shall be in addition to any other voting rights granted to the
holders of the Series B Junior Participating Preferred Stock in this Section 3.

                (D)  Except as required by law, by Section 3(C) and by Section 
10 hereof, holders of Series B Junior Participating Preferred Stock shall have  
no special voting rights and their consent shall not be required (except to the
extent they are entitled to vote with holders of Common Stock as set forth
herein) for taking any corporate action.

        4.      Certain Restrictions.

                (A)  Whenever quarterly dividends or other dividends or
distributions payable on the Series B Junior Participating Preferred Stock as
provided in Section 2 are in arrears, thereafter and until all accrued and
unpaid dividends and distributions, whether or not declared, on shares of
Series B Junior Participating Preferred Stock outstanding shall have been paid
in full, the Corporation shall not:

                     (i)    declare or pay dividends on, make any other
distributions on, or redeem or purchase or otherwise acquire for consideration
any shares of stock ranking junior (either as to dividends or upon liquidation,
dissolution or winding up) to the Series B Junior Participating Preferred
Stock;

                     (ii)   declare or pay dividends on or make any other
distributions on any shares of stock ranking on a parity (either as to
dividends or upon liquidation, dissolution or winding up) with the Series B
Junior Participating Preferred Stock, except dividends paid ratably on the
Series B Junior Participating Preferred Stock and all such parity stock on
which dividends are payable or in arrears in proportion to the total amounts to
which the holders of all such shares are then entitled; or

                     (iii)  purchase or otherwise acquire for consideration any
shares of Series B Junior Participating Preferred Stock, or any shares of stock
ranking on a parity with the Series B Junior Participating Preferred Stock,
except in accordance with a purchase offer made in writing or by publication
(as determined by the Board of Directors) to all holders of Series B Junior
Participating Preferred Stock, or to such holders and holders of any such
shares ranking on a parity therewith, upon such terms as the Board of
Directors, after consideration of the respective annual dividend rates and other
relative rights and preferences of the respective series and classes, shall
determine in good faith will result in fair and equitable treatment among the
respective series or classes.


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        (B)  The Corporation shall not permit any subsidiary of the Corporation
to purchase or otherwise acquire for consideration any shares of stock of the
Corporation unless the Corporation could, under paragraph (A) of this Section 4,
purchase or otherwise acquire such shares at such time and in such manner.

     5.   Reacquired Shares.  Any shares of Series B Junior Participating 
Preferred Stock purchased or otherwise acquired by the Corporation in any 
manner whatsoever shall be retired promptly after the acquisition thereof.  All 
such shares shall upon their retirement become authorized but unissued shares 
of Preferred Stock and may be reissued as part of a new series of Preferred 
Stock to be created by resolution or resolutions of the Board of Directors, 
subject to any conditions and restrictions on issuance set forth herein.

     6.   Liquidation, Dissolution or Winding Up. (A) Upon any liquidation, 
dissolution or winding up of the Corporation, voluntary or otherwise, no 
distribution shall be made to the holders of shares of stock ranking junior 
(either as to dividends or upon liquidation, dissolution or winding up) to the 
Series B Junior Participating Preferred Stock unless, prior thereto, the 
holders of shares of Series B Junior Participating Preferred Stock shall have 
received an amount per share (the "Series B Liquidation Preference") equal to 
the greater of (i) $500.00 plus an amount equal to accrued and unpaid dividends 
and distributions thereon, whether or not declared, to the date of such         
payment, or (ii) the Adjustment Number times the per share amount of all cash
and other property to be distributed in respect of the Common Stock upon such 
liquidation, dissolution or winding up of the Corporation.

        (B)  In the event, however, that there are not sufficient assets
available to permit payment in full of the Series B Liquidation Preference and
the liquidation preferences of all other classes and series of stock of the
Corporation, if any, that rank on a parity with the Series B Junior
Participating Preferred Stock in respect thereof, then the assets available for
such distribution shall be distributed ratably to the holders of the Series B
Junior Participating Preferred Stock and the holders of such parity shares in
proportion to their respective liquidation preferences.

        (C)  Neither the merger or consolidation of the Corporation into or with
another corporation nor the merger or consolidation of any other corporation
into or with the Corporation shall be deemed to be a liquidation, dissolution or
winding up of the Corporation within the meaning of this Section 6.

     7.   Consolidation, Merger, Etc.  In case the Corporation shall enter into 
any consolidation, merger, combination or other transaction in which the 
outstanding shares of Common Stock are exchanged for or changed into other 
stock or securities, cash and/or any other property, then in any such case each 
share of Series B Junior Participating Preferred Stock shall at the same time 
be similarly exchanged or changed in an amount per share equal to the 
Adjustment Number times the aggregate amount of stock, securities, cash and/or 
any other property (payable in kind), as the case may be, into which or for 
which each share of Common Stock is changed or exchanged.


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     8.   No Redemption.  Shares of Series B Junior Participating Preferred 
Stock shall not be subject to redemption by the Company.

     9.   Ranking.  The Series B Junior Participating Preferred Stock shall 
rank junior to all other series of the Preferred Stock as to the payment of 
dividends and as to the distribution of assets upon liquidation, dissolution or 
winding up, unless the terms of any such series shall provide otherwise, and 
shall rank senior to the Common Stock as to such matters.

     10.  Amendment.  At any time that any shares of Series B Junior 
Participating Preferred Stock are outstanding, the Restated Certificate of 
Incorporation of the Corporation shall not be amended in any manner which would 
materially alter or change the powers, preferences or special rights of the 
Series B Junior Participating Preferred Stock so as to affect them adversely 
without the affirmative vote of the holders of two-thirds of the outstanding 
shares of Series B Junior Participating Preferred Stock, voting separately as a 
class.

     11.  Fractional Shares.  Series B Junior Participating Preferred Stock may 
be issued in fractions of a share that shall entitle the holder, in proportion 
to such holder's fractional shares, to exercise voting rights, receive 
dividends, participate in distributions and to have the benefit of all other 
rights of holders of Series B Junior Participating Preferred Stock.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate this 9th 
day of September, 1998.


                                        TENNECO INC.



                                        By: /s/ Karl A. Stewart
                                           -----------------------------------
                                           Name:  Karl A. Stewart
                                           Title: Vice President and Secretary



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