Page 15
                                                                    Exhibit 3(a)


                        NATIONAL SERVICE INDUSTRIES, INC.

                                    BY - LAWS

                    (as amended and restated January 5, 2000)

                            (A Delaware Corporation)


                                   ARTICLE ONE
                                OFFICES AND AGENT


         1.1  Registered   Office  and  Agent.  The  registered  office  of  the
Corporation  within the State of  Delaware  shall be in the City of  Wilmington,
County of New Castle,  and the name of the registered agent in charge thereof is
The Corporation Trust Company.

         1.2 Other  Offices.  In addition to its  registered  office  within the
State of Delaware,  the  Corporation may also have offices at such other places,
both within and without the State of Delaware,  as the Board of  Directors  may,
from time to time  determine or the business of the  Corporation  may require or
make desirable.


                                   ARTICLE TWO
                             STOCKHOLDERS' MEETINGS


         2.1  Place  of  Meetings.  All  meetings  of the  stockholders  for the
election of directors or for any other purpose shall be held at any place either
within or without the State of Delaware as shall be designated from time to time
by the Board of Directors or, if it fails to act, the Chairman of the Board,  or
if he fails to act, the President,  and shall be stated in the notice of meeting
or a duly executed waiver thereof.

         2.2 Quorum,  Adjournment.  The holders of one-third of the voting power
of the stock of the Corporation issued and outstanding and entitled to vote at a
meeting  of  stockholders,  present  in person or  represented  by proxy,  shall
constitute a quorum at all meetings of the  stockholders  for the transaction of
business except as otherwise provided by the Delaware General Corporation Law or
by the Corporation's Restated Certificate of Incorporation, as amended from time
to time  ("Certificate of  Incorporation").  If, however,  a quorum shall not be
present or  represented  at any meeting of the  stockholders,  the  stockholders
entitled to vote  thereat  shall have the power to adjourn the meeting from time
to time,  without notice other than announcement at the meeting,  until a quorum
shall be present.  At such adjourned meeting at which a quorum shall be present,
any business may be transacted  which might have been  transacted at the meeting
as originally  called.  If the  adjournment is for more than thirty days, or, if
after  adjournment a new record date is set, a notice of the  adjourned  meeting
shall be given to each stockholder of record entitled to vote at the meeting.

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                                                                    Exhibit 3(a)

         2.3 Conduct of Meetings. At each meeting of stockholders,  the Chairman
of the Board shall act as chairman of the  meeting.  In the absence or inability
or refusal to act of the Chairman of the Board,  the Vice Chairman of the Board,
or if a Vice Chairman has not been elected, the President, shall act as chairman
of the meeting.  The Secretary or, in his absence,  inability or refusal to act,
such person as the chairman of the meeting  shall appoint shall act as secretary
of the meeting and keep the minutes thereof.

         2.4 Order of  Business.  The order of business  at all  meetings of the
stockholders shall be as determined by the chairman of the meeting.

         2.5   Voting.   Except  as   otherwise   provided  by  statute  or  the
Corporation's Certificate of Incorporation,  each stockholder of the Corporation
shall be entitled at each meeting of  stockholders to one vote for each share of
capital  stock  of  the  Corporation  standing  in  his  name  on  the  list  of
stockholders  of the  Corporation  on the record date fixed as provided in these
By-Laws, as amended from time to time ("By-Laws").  Each stockholder entitled to
vote at any meeting of stockholders  may authorize  another person or persons to
act for him by a proxy which is in writing or is  transmitted  as  permitted  by
law, including,  without  limitation,  electronically,  via telegram,  internet,
interactive  voice response  system,  or other means of electronic  transmission
executed or authorized by such stockholders or his  attorney-in-fact and bearing
a date not  more  than  three  (3)  years  prior to said  meeting,  unless  said
instrument  provides for a longer  period.  Any such proxy shall be delivered to
the secretary of the meeting at or prior to the time  designated in the order of
business for so delivering such proxies.  Any proxy  transmitted  electronically
shall set forth  information from which it can be determined by the secretary or
voting inspector of the meeting that such electronic transmission was authorized
by the  stockholder.  At all  meetings  of  stockholders  for  the  election  of
directors a plurality of the votes cast shall be sufficient to elect.  All other
elections  and  questions  shall,  unless  otherwise  provided  by law or in the
Corporation's  Certificate of Incorporation or these By-Laws,  be decided by the
vote of the holders of a majority of the outstanding shares of stock entitled to
vote thereon  present in person or by proxy at the meeting.  Unless  required by
statute, or determined by the chairman of the meeting to be advisable,  the vote
on any question need not be by ballot. On a vote by ballot, each ballot shall be
signed by the stockholder  voting,  or by his proxy, if there be such proxy, and
shall state the number of shares voted.

         2.6 List of Stockholders.  A complete list of the stockholders entitled
to vote at each meeting of stockholders,  arranged in alphabetical  order,  with
the  address of each,  and the number of voting  shares  held by each,  shall be
prepared by the  Secretary  at least ten days before  every  meeting.  Such list
shall be open to the examination of any stockholder,  for any purpose germane to
the meeting,  during ordinary  business hours, for a period of at least ten days
prior to the meeting,  either at a place within the city where the meeting is to
be held, which place shall be specified in the notice of the meeting, or, if not
so specified,  at the place where the meeting is to be held. The list shall also
be produced and kept at the time and place of the meeting  during the whole time
thereof, and may be inspected by any stockholder who is present.

         2.7  Inspectors.  The Board of Directors may, in advance of any meeting

                                                                         Page 17
                                                                    Exhibit 3(a)

of  stockholders,  appoint one or more  inspectors to act at such meeting or any
adjournment  thereof. If any of the inspectors so appointed shall fail to appear
or act, the chairman of the meeting shall, or if inspectors  shall not have been
appointed, the chairman of the meeting may, appoint one or more inspectors. Each
inspector, before entering upon the discharge of his duties, shall take and sign
an oath  faithfully  to execute the duties of  inspector  at such  meeting  with
strict  impartiality  and according to the best of his ability.  The  inspectors
shall  determine  the  number  of  shares of  capital  stock of the  Corporation
outstanding  and the voting power of each,  the number of shares  represented at
the meeting,  the existence of a quorum, and the validity and effect of proxies,
and shall receive votes, ballots or consents,  hear and determine all challenges
and questions  arising in connection with the right to vote,  count and tabulate
all votes,  ballots or consents,  determine the results, and do such acts as are
proper to conduct the  election or vote with  fairness to all  stockholders.  On
request of the chairman of the meeting,  the  inspectors  shall make a report in
writing of any challenge, request or matter determined by them and shall execute
a certificate of any fact found by them. No director or candidate for the office
of director  shall act as an inspector of an election of  directors.  Inspectors
need not be stockholders.

         2.8 Annual  meeting.  The Annual  Meeting  of the  Stockholders  of the
Corporation  ("Annual  Meeting")  shall be held at such time and on such date as
shall be  designated  by the Board of  Directors  and  stated  in the  notice of
meeting. At such meeting,  the stockholders shall elect directors as provided in
the  Corporation's  Certificate of Incorporation  and By-Laws and shall transact
such other business as may properly come before the meeting.

         2.9 Notice of Annual Meeting. Except as otherwise expressly required by
statute,  written notice of the Annual Meeting stating the date,  place and time
of the meeting shall be given to each stockholder  entitled to vote thereat, not
less than ten nor more than sixty days prior to the date of the meeting.  Notice
is given when deposited in the United States mail, postage prepaid,  directed to
the stockholder at his address as it appears on the records of the  Corporation.
Notice of any  meeting  shall not be  required to be given to any person (i) who
attends such meeting,  except when such person  attends the meeting in person or
by proxy for the express purpose of objecting,  at the beginning of the meeting,
to the transaction of any business because the meeting is not lawfully called or
convened, or (ii) who, either before or after the meeting, shall submit a signed
written  waiver of notice,  in person or by proxy.  Neither  the  business to be
transacted  at, nor the purpose of, an Annual  Meeting  need be specified in any
written waiver of notice.

         2.10 Notice of Stockholder  Proposals.  (a) At an Annual Meeting,  only
such business shall be conducted,  and only such proposals  shall be acted upon,
as shall have been brought before the Annual Meeting (i) by, or at the direction
of, the Board of Directors or (ii) by any  stockholder  of the  Corporation  who
complies with the notice  procedures set forth in this Section of these By-Laws.
For a proposal to be properly brought before an Annual Meeting by a stockholder,
the  stockholder  must have  given  timely  notice  thereof  in  writing  to the
Secretary  of the  Corporation.  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 forty-five  (45) or more than  seventy-five

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                                                                    Exhibit 3(a)

(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,
regardless of any postponements, deferrals, or adjournments of that meeting to a
later date; provided, however, that if during the preceding year the Corporation
did not hold an Annual  Meeting or if the date of the Annual Meeting is advanced
more than  thirty  (30) days prior to or delayed by more than  thirty  (30) days
after the  anniversary  of the preceding  year's Annual  Meeting,  notice by the
stockholder  to be timely must be so delivered or received not later than ninety
(90) days prior to the scheduled Annual Meeting; and provided, further, however,
that if less than one hundred  (100) days' notice or prior public  disclosure of
the date of the  scheduled  Annual  Meeting  is given  or  made,  notice  by the
stockholder  to be timely must be so  delivered  or received  not later than the
close of business on the tenth  (10th) day  following  the earlier of the day on
which such notice of the date of the scheduled  Annual Meeting was mailed or the
day on which such public  disclosure  was made.  A  stockholder's  notice to the
Secretary  shall set forth as to each matter the  stockholder  proposes to bring
before the Annual Meeting (i) a brief  description of the proposal desired to be
brought before the Annual  Meeting and the reasons for conducting  such business
at the  Annual  Meeting,  (ii) the  name  and  address,  as they  appear  on the
Corporation's  books, of the  stockholder  proposing such business and any other
stockholders known by such stockholder to be supporting such proposal, (iii) the
class and the number of shares of the Corporation's stock which are beneficially
owned by the stockholder on the date of such stockholder notice and by any other
stockholders  known by such  stockholder  to be supporting  such proposal on the
date  of such  stockholder  notice,  and  (iv)  any  financial  interest  of the
stockholder in such proposal.

                  (b) If the presiding officer of the Annual Meeting  determines
that a stockholder  proposal was not made in  accordance  with the terms of this
Section,  he shall so declare at the Annual Meeting and any, such proposal shall
not be acted upon at the Annual Meeting.

                  (c) This  provision  shall not prevent the  consideration  and
approval or disapproval at the Annual Meeting of reports of officers,  directors
and committees of the Board of Directors,  but, in connection with such reports,
no business shall be acted upon at such Annual Meeting unless stated,  filed and
received as herein provided.

         2.11 Special Meetings.  Special meetings of the stockholders  ("Special
Meetings"),  for any purpose or purposes, unless otherwise prescribed by statute
or by the  Certificate of  Incorporation,  may be called by the Chief  Executive
Officer,  and shall be called by the  President  or  Secretary at the request in
writing of a majority of the Board of  Directors.  Such request  shall state the
purpose or purposes of the proposed meeting.  Business transacted at all Special
Meetings shall be confined to the purposes stated in the notice of meeting.

         2.12 Notice of Special Meetings. Except as otherwise expressly required
by statute,  written notice of a special meeting, stating the date, time, place,
and purpose or purposes thereof,  shall be given to each stockholder entitled to
vote thereat not less than ten nor more than sixty days prior to the date of the
meeting.  Notice is given when  deposited  in the United  States  mail,  postage
prepaid, directed to the stockholder at his

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                                                                    Exhibit 3(a)

address as it appears on the records of the  Corporation.  Notice of any meeting
shall not be required to be given to any person who attends such meeting, except
when such  person  attends  the  meeting  in person or by proxy for the  express
purpose of objecting, at the beginning of the meeting, to the transaction of any
business because the meeting is not lawfully called or convened,  or who, either
before or after the meeting,  shall submit a signed written waiver of notice, in
person or by proxy.  Neither the business to be  transacted  at, nor the purpose
of, a Special Meeting need be specified in any written waiver of notice.


                                  ARTICLE THREE
                               BOARD OF DIRECTORS


         3.1 General Powers.  The business and affairs of the Corporation  shall
be managed by or be under the direction of the Board of Directors.  The Board of
Directors may exercise all such authority and powers of the  Corporation  and do
all such  lawful  acts and  things as are not by  statute  or the  Corporation's
Certificate   of   Incorporation   directed  or  required  to  be  done  by  the
stockholders.

         3.2  Number,  Qualification,  Term of Office.  The number of  directors
which constitute the entire Board of Directors of the Corporation shall be fixed
by  resolution  of the Board of  Directors  from time to time,  but shall in any
event be not less than seven nor more than  fifteen.  Any decrease in the number
of  directors  shall be  effective  at the time of the  next  succeeding  Annual
Meeting  unless  there shall be  vacancies in the Board of Directors at the time
the Board  effects  such  decrease,  in which  case  such  decrease  may  become
effective at any time prior to the next succeeding  Annual Meeting to the extent
of the  number  of  vacancies.  Directors  need not be  stockholders.  Except as
provided in these By-Laws,  directors  shall be elected at the Annual Meeting or
at a Special Meeting called for such purpose, and each director shall be elected
to hold office until a successor shall be elected and qualify.

         3.3 Election of  Directors.  Nominations  for the election of directors
may be made by the Board of Directors or a nominating committee appointed by the
Board of  Directors  or by any  stockholder  entitled to vote in the election of
directors  generally.  However, any stockholder entitled to vote in the election
of  directors  generally  may  nominate  one or more  persons  for  election  as
directors at a meeting only if written  notice of such  stockholder's  intent to
make such nomination or nominations has been given,  either by personal delivery
or by United States mail,  postage prepaid,  to the Secretary of the Corporation
not later than (i) with respect to an election to be held at an Annual  Meeting,
ninety  (90) days prior to the  anniversary  date of the  immediately  preceding
Annual  Meeting;  and (ii) with  respect to an  election to be held at a Special
Meeting for the election of directors, the close of business on the tenth (10th)
day  following  the date on  which  notice  of such  meeting  is first  given to
stockholders.  Each such notice shall set forth: (A) the name and address of the
stockholder  who intends to make the  nomination and of the person or persons to
be nominated; (B) a representation that the stockholder is a holder of record of
stock of the Corporation  entitled to vote at such meeting and intends

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                                                                    Exhibit 3(a)

to appear in person or by proxy at the meeting to nominate the person or persons
specified in the notice; (C) a description of all arrangements or understandings
between the stockholder and each nominee and any other person or persons (naming
such person or persons)  pursuant to which the nomination or nominations  are to
be made by the stockholder;  (D) such other  information  regarding each nominee
proposed  by such  stockholder  as would be  required  to be included in a proxy
statement  filed  pursuant to the proxy  rules of the  Securities  and  Exchange
Commission as then in effect;  and (E) the consent of each nominee to serve as a
director of the Corporation if so elected.  The presiding officer of the meeting
shall refuse to acknowledge  the nomination of any person not made in compliance
with the foregoing procedure.  The vote necessary to elect directors shall be as
set forth in these By-Laws including,  without  limitation,  Section 2.5 hereof,
unless otherwise required by the Delaware General Corporation Law.

         3.4  Vacancies.   Unless  otherwise   provided  in  the   Corporation's
Certificate of  Incorporation  (or by resolution of the Board of Directors,  any
vacancy in the Board of  Directors,  whether  arising  from death,  resignation,
removal, or any other cause, and any newly created  directorship  resulting from
an  increase  in the  number  of  directors,  shall be filled  exclusively  by a
majority of the directors then in office, although less than a quorum, or by the
sole  remaining  director,  and shall not be  filled by the  stockholders.  Each
director  so  elected  shall hold  office  until his  successor  shall have been
elected and qualified.

         3.5  Resignations.  Any director of the  Corporation  may resign at any
time by giving written notice of his  resignation to the  Corporation.  Any such
resignation shall take effect at the time specified therein or, if the time when
it shall become effective shall not be specified  therein,  immediately upon its
receipt.  Unless otherwise specified therein, the acceptance of such resignation
shall not be necessary to make it effective.

        3.6 Committees. (a) The Board of Directors may, by resolution passed by
a majority of the entire Board of Directors,  designate one or more  committees,
including an executive  committee,  each  committee to consist of one or more of
the  directors of the  Corporation.  The Board of Directors may designate one or
more directors as alternate members of any committee, who may replace any absent
or  disqualified  member at any meeting of the  committee.  In addition,  in the
absence or  disqualification  of a member of a committee,  the member or members
thereof present at any meeting and not disqualified from voting,  whether or not
he or they constitute a quorum,  may  unanimously  appoint another member of the
Board of  Directors  to act at the  meeting  in the place of any such  absent or
disqualified member.

                  (b) Except to the extent  restricted  by the Delaware  General
Corporation Law or the  Corporation's  Certificate of  Incorporation,  each such
committee,  to the extent provided in the resolution creating it, shall have and
may  exercise all the powers and  authority  of the Board of  Directors  and may
authorize the seal of the  Corporation to be affixed to all papers which require
it. Each such  committee  shall serve at the  pleasure of the Board of Directors
and have such name as may be determined from time to time by resolution  adopted
by the Board of  Directors.  Each  committee  shall keep regular  minutes of its
meetings and report the same to the Board of Directors.

                                                                         Page 21
                                                                    Exhibit 3(a)

                  (c) Except to the extent  restricted  by the Delaware  General
Corporation Law or the Corporation's Certificate of Incorporation, the Executive
Committee,  if any, shall,  when the Board of Directors is not in session,  have
and may exercise  all the powers and  authority of the Board of Directors in the
management of the business and affairs of the  Corporation,  including,  without
limitation,  the power and  authority to declare a dividend,  to  authorize  the
issuance of stock,  and to adopt a certificate of ownership and merger  pursuant
to Section 253 of the Delaware General Corporation Law.

         3.7  Compensation.  The Board of Directors  shall have authority to fix
the compensation, including fees and reimbursement of expenses, of directors for
services to the Corporation in any capacity.


                                  ARTICLE FOUR
                              MEETINGS OF THE BOARD


         4.1 Annual  Meeting.  The newly elected  Board shall meet,  immediately
after  the  Annual  Meeting  at which  they were  elected,  for the  purpose  of
organization  or otherwise,  and no notice of such meeting shall be necessary to
the newly elected directors in order legally to constitute the meeting, provided
a majority of the whole Board shall be present.

         4.2  Regular  Meetings.  Regular  meetings  of the Board  shall be held
within six (6) weeks  following the end of each fiscal  quarter at such time and
place as the Board of Directors may fix. Notice of regular meetings of the Board
of Directors need not be given.

         4.3 Special  Meetings.  Special  meetings of the Board may be called by
the Chairman of the Board or the President.  Notice of any special meeting shall
be given to each  director  at least  twelve  (12) hours  before the  meeting by
telephone  or by being  personally  delivered or sent by telex,  telecopier,  or
telegraph, or at least three (3) days before the meeting if delivered by mail at
the address at which the  director  is most  likely to be  reached.  Such notice
shall be deemed to be  delivered  when  deposited  in the United  States mail so
addressed,  with  postage  prepaid,  or  when  transmitted  if  sent  by  telex,
telecopier  or  telegraph.  Any  director  may waive  notice of any meeting by a
writing signed by the director entitled to the notice and filed with the minutes
or corporate  records.  The attendance at or  participation of the director at a
meeting shall constitute  waiver of notice of such meeting,  unless the director
at the beginning of the meeting or promptly upon his arrival  objects to holding
the meeting or transacting  business at the meeting.  Neither the business to be
transacted at, nor the purpose of, any meeting of the Board of Directors need be
specified in the notice or waiver of notice of such  meeting.  Special  meetings
shall be called by the  Chairman of the Board,  President  or  Secretary in like
manner and on like notice on the written request of two directors.

         4.4 Place of Meetings.  Unless otherwise specified in the notice of any
meeting,  meetings  of the  Board of  Directors  shall be held at such  place or
places,  within

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                                                                    Exhibit 3(a)

or without the State of  Delaware,  as the Board of  Directors  may from time to
time determine.

         4.5  Quorum  and  Manner  of  Acting.  At all  meetings  of the  Board,
one-third of the total number of directors  shall be necessary and sufficient to
constitute a quorum for the  transaction of business,  and the act of a majority
of the directors  present at any meeting at which there is a quorum shall be the
act of the Board of Directors,  except as may be otherwise specifically provided
by the Delaware  General  Corporation Law or by the Certificate of Incorporation
or by these By-Laws. However, directors attending a meeting at which less than a
quorum is present  shall have the power to adjourn  the  meeting.  Notice of the
time  and  place  of any  such  adjourned  meeting  shall be given to all of the
directors  unless such time and place were announced at the meeting at which the
adjournment  was  taken,  in which case such  notice  shall only be given to the
directors  who were not present  thereat.  At any  adjourned  meeting at which a
quorum  is  present,  any  business  may be  transacted  which  might  have been
transacted at the meeting as originally called.

         4.6 Conduct of Meetings. At each meeting of the Board of Directors, the
Chairman of the Board shall act as chairman of the meeting and preside  thereat.
The  Secretary  or, in his absence,  inability or refusal to act, such person as
the chairman of the meeting  shall appoint shall act as secretary of the meeting
and keep the minutes thereof.

         4.7  Action  by  Consent.   Unless   restricted  by  the  Corporation's
Certificate of  Incorporation,  any action  required or permitted to be taken by
the Board of  Directors  or  committee  may be taken  without  a meeting  if all
members of the Board of Directors or such committee, as the case may be, consent
thereto in writing,  and the  writing or writings  are filed with the minutes of
the proceedings of the Board of Directors or committee, as the case may be.

         4.8  Telephonic   Meeting.   Unless  restricted  by  the  Corporation's
Certificate of Incorporation,  any one or more members of the Board of Directors
or any committee  thereof may participate in a meeting of the Board of Directors
or such committee by means of a conference  telephone or similar  communications
equipment  by means of which all persons  participating  in the meeting can hear
each other. Participation by such means shall constitute presence in person at a
meeting.


                                  ARTICLE FIVE
                                    OFFICERS


         5.1 Offices.  The Board of  Directors,  at its first meeting after each
Annual  Meeting of  Stockholders,  shall elect the officers of the  Corporation,
which shall include the following: Chairman of the Board; President; one or more
Vice  Presidents,  as the Board of Directors  shall  designate;  Secretary;  and
Treasurer.  The Secretary and the Treasurer may be the same person, and any Vice
President  may hold at the same time the office of Secretary  and/or  Treasurer.
The Board may elect one or more Assistant  Secretaries and one or more Assistant
Treasurers as may be necessary or desirable for the

                                                                         Page 23
                                                                     Exhbit 3(a)

business of the  Corporation.  The Board may also elect from among its members a
Vice  Chairman  of the Board,  and from among its members or former  members,  a
Chairman  Emeritus.  The Board may elect  such other  officers  as it shall deem
necessary,  who shall hold their offices for such terms and shall  exercise such
powers and perform such duties as shall be  determined  from time to time by the
Board.

         5.2  Designation  of Chief  Executive  Officer.  The Board of Directors
shall  designate  either  the  Chairman  of the  Board or the  President  of the
Corporation  as the  Chief  Executive  officer  of the  Corporation.  The  Chief
Executive  Officer  shall have  authority  over the  business and affairs of the
Corporation  and  over  all  other   officers,   agents  and  employees  of  the
Corporation, subject to the control and direction of the Board of Directors.

         5.3 Designation of Chief Operating Officer.  The Board of Directors may
designate an officer of the  Corporation as the Chief  Operating  Officer of the
Corporation.  The Chief  Operating  Officer,  if  designated,  shall  manage and
operate the business and affairs of the Corporation,  subject to the control and
direction of the Board of  Directors,  and shall  report to the Chief  Executive
Officer.

         5.4 Compensation.  The  salaries  of all  officers  shall  be  fixed
by or pursuant to the direction of the Board of Directors.

         5.5 Tenure and  Removal.  Each  officer of the  Corporation  shall hold
office until his  successor is chosen and  qualifies in his stead,  or until his
death, or until he shall have resigned or been removed, as hereinafter  provided
in these By-Laws. Any officer elected or appointed by the Board of Directors may
be  removed  at any time  with or  without  cause by the  affirmative  vote of a
majority of the Board of Directors.

         5.6 Resignations. Any officer of the Corporation may resign at any time
by  giving  written  notice  of his  resignation  to the  Corporation.  Any such
resignation shall take effect at the time specified therein or, if the time when
it shall become  effective  shall not be  specified  therein,  immediately  upon
receipt.  Unless  otherwise  specified  therein,  the  acceptance  of  any  such
resignation shall not be necessary to make it effective.

         5.7 Vacancies. If the office of any officer becomes vacant by reason of
death,  resignation,  retirement,  disqualification,  removal  from  office,  or
otherwise,  the Board of Directors  may fill each such vacancy for the unexpired
term in respect of which such vacancy occurred.

         5.8  Chairman  of the Board.  (a) The  Chairman  of the Board  shall be
elected from among the members of the Board of Directors and shall be an officer
of the  Corporation.  The Chairman shall preside at all meetings of the Board of
Directors  and of the  stockholders.  The  Chairman  shall have such  powers and
duties as an officer of the  Corporation as provided by these By-Laws and as the
Board of Directors may from time to time prescribe.

                  (b) The Chairman may sign,  execute,  acknowledge and deliver,
in the name and on behalf of the  Corporation,  all stock  certificates,  deeds,
mortgages, bonds,

Page 24
                                                                    Exhibit 3(a)

contracts, documents and instruments,  except where the signing thereof shall be
expressly and exclusively  delegated to some other officer or agent by the Board
of Directors or by these By-Laws,  or required by law to be otherwise  signed or
executed.

         5.9  Chairman  Emeritus.  The  Board of  Directors  may  elect a former
Chairman of the Board as Chairman  Emeritus.  The Chairman  Emeritus shall be an
honorary  position,   reflecting   outstanding   service  and  devotion  to  the
Corporation.  The Chairman  Emeritus  shall advise and consult with the Board of
Directors,  committees of the Board of Directors,  and the President, on matters
of interest to the Corporation, and shall perform such other duties as the Board
of Directors may from time to time prescribe.

         5.10 Vice Chairman of the Board. The Vice Chairman of the Board, if one
shall have been  elected  from among the  members  of the Board,  shall,  in the
absence of the Chairman or in the event of the  Chairman's  refusal or inability
to act, preside at all meetings of the Board of Directors and stockholders,  and
shall  perform such other duties as the Board of Directors may from time to time
prescribe.

         5.11  President.  (a) The  President  shall have such  powers and shall
perform  such  duties  as are  provided  by these  By-Laws  and as the  Board of
Directors  may  from  time  to  time  prescribe.  The  President  shall,  in the
Chairman's  absence,  inability  or  refusal to act,  perform  the duties of the
Chairman,  other than duties to be performed by the Vice  Chairman (if one shall
have been elected) as  prescribed  under or pursuant to these  By-Laws.  When so
acting,  the President shall have all of the powers of and be subject to all the
restrictions upon the Chairman, including the powers and restrictions applicable
to the Chief Executive Officer if the Chairman serves in that capacity.

                  (b) The President may sign, execute,  acknowledge and deliver,
in the name and on behalf of the  Corporation,  all stock  certificates,  deeds,
mortgages, bonds, contracts, documents and instruments, except where the signing
thereof  shall be expressly and  exclusively  delegated to some other officer or
agent by the Board of  Directors  or by these  By-Laws or  required by law to be
otherwise signed or executed.

         5.12 Vice President. (a) Each Vice President shall have such powers and
be  required  to  perform  such  duties as the Board of  Directors  or the Chief
Executive Officer may from time to time prescribe.

                  (b) The Board of Directors  may  designate  one or more of the
Vice Presidents as Executive Vice  President.  The Executive Vice President (or,
if more than one Executive  Vice  President has been  designated,  the Executive
Vice President  specified by the Board of Directors)  shall,  in the President's
absence,  inability  or  refusal  to  act,  perform  all  of the  duties  of the
President.  When so acting,  the Executive Vice President  shall have all of the
powers  of  and be  subject  to all of  the  restrictions  upon  the  President,
including the powers and restrictions  applicable to the Chief Executive Officer
if the President serves in that capacity.

         5.13  Secretary.  (a) The  Secretary  shall  attend all sessions of the
Board and all  meetings of the  stockholders  and shall record all votes and the
minutes  of all such

                                                                         Page 25
                                                                    Exhibit 3(a)

proceedings in a book to be kept for that purpose.  The Secretary  shall perform
like  duties  for the  Committees  of the  Board  upon  requested.  He  shall be
custodian  of the  records and the seal of the  Corporation  and shall affix and
attest the seal to all  documents  to be executed  on behalf of the  Corporation
under its seal. He shall give,  or cause to be given,  notice of all meetings of
the  stockholders  and of  the  Board  of  Directors,  in  accordance  with  the
provisions of these By-Laws and as required by the Delaware General  Corporation
Law, and shall  perform such other duties as the Board of Directors or the Chief
Executive Officer may from time to time prescribe.

                  (b) The Assistant Secretary shall, in the Secretary's absence,
inability  or refusal to act,  perform  the duties of the  Secretary,  and shall
perform  such  other  duties as the Board of  Directors  or the Chief  Executive
Officer may from time to time prescribe.

         5.14 Treasurer.  (a) The Treasurer shall have charge and custody of the
corporate  funds and  securities  and shall keep full and  accurate  accounts of
receipts and  disbursements,  in books belonging to the  Corporation,  and shall
deposit all corporate  monies and other valuable  effects in the name and to the
credit of the Corporation in such depositories as may be designated by the Board
of Directors or pursuant to its direction.

                  (b) The  Treasurer  shall receive and give receipts for monies
due and payable to the Corporation from any source whatsoever and shall disburse
the funds of the  Corporation  as may be  ordered by the  Board,  taking  proper
vouchers  therefor,  and shall render to the  President  and  directors,  at the
regular  meetings of the Board,  or whenever  they may require it, an account of
all of his  transactions  as  Treasurer  and of the  financial  condition of the
Corporation  and in general,  perform  all duties  incident to the office of the
Treasurer and such other duties as the Board of Directors or the Chief Executive
Officer may from time to time prescribe.

                  (c) The Assistant Treasurer shall, in the Treasurer's absence,
inability or refusal to act,  perform the duties of the Treasurer and shall also
perform  such  other  duties as the Board of  Directors  or the Chief  Executive
Officer may from time to time prescribe.


                                   ARTICLE SIX
                     STOCK CERTIFICATES AND TRANSFER THEREOF


         6.1 Stock Certificates.  Every holder of stock in the Corporation shall
be entitled to have a certificate,  signed by, or in the name of the Corporation
by, the Chairman of the Board or the President or the Executive  Vice  President
and by the Treasurer or an Assistant  Treasurer or the Secretary or an Assistant
Secretary of the  Corporation,  certifying  the number of shares owned by him in
the Corporation.  If the Corporation  shall be authorized to issue more than one
class  of  stock  or more  than  one  series  of any  class,  the  designations,
preferences  and relative,  participating,  optional or other special  rights of
each class of stock or series  thereof and the  qualifications,  limitations  or
restrictions  of such  preferences  and/or  rights shall be set forth in full or
summarized on the face or back of the certificate  which the  Corporation  shall
issue to  represent  such  class or series of stock,  provided  that,  except as
otherwise  provided in Section 202 of the Delaware  General  Corporation Law, in
lieu of the foregoing  requirements,  there may be set forth on the face or back
of the certificate  which the Corporation shall issue

Page 26
                                                                    Exhibit 3(a)

to represent  such class or series of stock,  a statement  that the  Corporation
will  furnish   without  charge  to  each   stockholder   who  so  requests  the
designations, preferences and relative, participating, optional or other special
rights  of each  class  of  stock  or  series  thereof  and the  qualifications,
limitations or restrictions of such preferences and/or rights.

         6.2  Transfers  of Stock.  Upon  surrender  to the  Corporation  or the
transfer agent of the  Corporation of a certificate  for shares duly endorsed or
accompanied  by proper  evidence  of  succession,  assignment  or  authority  to
transfer,  it shall be the duty of the Corporation to issue a new certificate to
the  person  entitled  thereto,  cancel  the  old  certificate  and  record  the
transaction upon its record;  provided,  however,  that the Corporation shall be
entitled to recognize and enforce any lawful  restriction on transfer.  Whenever
any transfer of stock shall be made for collateral security, and not absolutely,
it shall be so expressed in the entry of transfer if, when the  certificates are
presented  to  the  Corporation  for  transfer,  both  the  transferor  and  the
transferee request the Corporation to do so.

         6.3  Registered  Stockholders.  The  Corporation  shall be  entitled to
recognize the exclusive right of a person registered on its records as the owner
of  shares  of  stock  to  receive  dividends  and to vote as  such  owner,  and
accordingly,  shall not be bound to recognize any equitable or other claim to or
interest  in such  share or  shares  of stock on the part of any  other  person,
whether  or not it  shall  have  express  or other  notice  thereof,  except  as
otherwise provided by the laws of Delaware.

         6.4 Record Date.  (a) In order that the  Corporation  may determine the
stockholders entitled to notice of or to vote at any meeting of stockholders, or
to receive  payment of any  dividend or other  distribution  or allotment of any
rights or to  exercise  any  rights in  respect  of any  change,  conversion  or
exchange of stock or for the purpose of any other  lawful  action,  the Board of
Directors may fix a record date, which record date shall not precede the date on
which the  resolution  fixing the record date is adopted  and which  record date
shall not be more than sixty (60) nor less than ten (10) days before the date of
any meeting of stockholders, nor more than sixty (60) days prior to the time for
such other  action as  hereinbefore  described;  provided,  however,  that if no
record date is fixed by the Board of Directors,  the record date for determining
stockholders entitled to notice of or to vote at a meeting of stockholders shall
be at the close of business on the day next preceding the day on which notice is
given  or,  if  notice  is  waived,  at the  close of  business  on the day next
preceding  the  day  on  which  the  meeting  is  held,   and,  for  determining
stockholders  entitled to receive payment of any dividend or other  distribution
or  allotment  or rights or to  exercise  any  rights of change,  conversion  or
exchange  of stock or for any other  purpose,  the  record  date shall be at the
close of business on the day on which the Board of Directors adopts a resolution
relating thereto.

                  (b) A  determination  of  stockholders  of record  entitled to
notice of or to vote at a meeting of stockholders shall apply to any adjournment
of the meeting;

                                                                         Page 27
                                                                    Exhibit 3(a)

provided, however, that the Board of Directors may fix a new record date for the
adjourned meeting.

                  (c)  In  order  that  the   Corporation   may   determine  the
stockholders  entitled  to consent  to  corporate  action in  writing  without a
meeting,  the Board of Directors may fix a record date,  which record date shall
not precede the date upon which the resolution fixing the record date is adopted
by the Board of  Directors,  and which date shall not be more than ten (10) days
after the date upon which the  resolution  fixing the record  date is adopted by
the  Board  of  Directors.  Any  stockholder  of  record  seeking  to  have  the
stockholders  authorize or take corporate  action by written  consent shall,  by
written notice to the Secretary,  request the Board of Directors to fix a record
date.  Such notice  shall  specify the action  proposed  to be  consented  to by
stockholders.  The Board of Directors shall  promptly,  but in all events within
ten (10)  days  after  the date on which  such a request  is  received,  adopt a
resolution fixing the record date. If no record date has been fixed by the Board
of  Directors  within  ten (10) days  after the date on which  such a request is
received,  the record date for determining  stockholders  entitled to consent to
corporate action in writing without a meeting, when no prior action by the Board
of Directors is required by applicable  law,  shall be the first date on which a
signed written consent setting forth the action taken or proposed to be taken is
delivered to the Corporation.  Such delivery to the Corporation shall be made to
its registered office in the State of Delaware, its principal place of business,
or any officer or agent of the  Corporation  having custody of the book in which
proceedings of meetings of  stockholders  are recorded,  to the attention of the
Secretary of the Corporation.  Such delivery shall be by hand or by certified or
registered mail, return receipt  requested.  If no record date has been fixed by
the Board of Directors and prior action by the Board of Directors is required by
applicable law, the record date for determining stockholders entitled to consent
to corporate  action in writing without a meeting shall be the close of business
on the date on which the Board of Directors  adopts the  resolution  taking such
prior action.

                  In the  event of  delivery  to the  Corporation  of a  written
consent or written  consents  purporting to authorize or take corporate  action,
and/or related revocation or revocations, (each such written consent and related
revocation,  individually and collectively,  a "Consent"),  the Secretary of the
Corporation  shall provide for the safekeeping of such Consent and shall as soon
as practicable thereafter conduct such reasonable investigation as the Secretary
deems necessary or appropriate  for the purpose of ascertaining  the validity of
such Consent and all matters incident thereto,  including,  without  limitation,
whether holders of shares having the requisite voting power to authorize or take
the  action  specified  in  the  Consent  have  given  consent.  If  after  such
investigation  the Secretary  shall determine that the Consent is sufficient and
valid,  that fact shall be certified on the records of the Corporation  kept for
the purpose of recording the  proceedings of meetings of the  stockholders,  and
the Consent  shall be filed in such  records,  at which time the  Consent  shall
become effective as stockholder action.

         6.5 Lost Certificates. Any person claiming a certificate of stock to be
lost,  stolen or destroyed  shall make an affidavit or affirmation of that fact,
in such manner and form as the Board of Directors may from time to time require,
in order to obtain issuance

Page 28
                                                                    Exhibit 3(a)

of a new  certificate  in place  thereof.  The Board of  Directors  may,  at its
discretion and as a condition  precedent to any such issuance,  require any such
person to give the  Corporation a bond in such sum as it may direct to indemnify
it against any claim that may be made against the  Corporation on account of the
alleged loss,  theft or destruction  of any such  certificate or the issuance of
such new certificate.  Upon compliance with all requirements  established by the
Board of Directors for any such issuance, a new certificate may be issued.

         6.6 Facsimile Signatures. Any or all of the signatures on a certificate
may be a facsimile.  In case any officer,  transfer  agent or registrar  who has
signed or whose  facsimile  signature has been placed upon a  certificate  shall
have  ceased  to be such  officer,  transfer  agent  or  registrar  before  such
certificate is issued, it may, be issued by the Corporation with the same effect
as if he were such officer, transfer agent or registrar at the date of issue.

         6.7 Transfer Agents and Registrars. The Board of Directors may appoint,
or authorize any officer or officers to appoint, one or more transfer agents and
one or more registrars.

         6.8 Regulations.  The Board of Directors may make such additional rules
and regulations,  not inconsistent with these By-Laws,  as it may deem expedient
concerning the issue,  transfer and  registration of certificates  for shares of
stock of the Corporation.


                                  ARTICLE SEVEN
                               GENERAL PROVISIONS


         7.1 Corporate Seal. The corporate seal shall have inscribed thereon the
name of the Corporation and the words "CORPORATE SEAL" and "DELAWARE."

         7.2 Fiscal  Year.  The  fiscal  year  shall  begin  the  first day of
September in each year.

         7.3 Checks, Notes, Drafts, Etc. All checks, drafts or other demands for
the payment of money and notes of the Corporation shall be signed,  endorsed, or
accepted in the name of the Corporation by such officer or officers from time to
time  designated  by  the  Board  of  Directors  or by an  officer  or  officers
authorized by the Board of Directors to make such designation.

         7.4 Execution of Instruments.  The Board of Directors may authorize any
officer  or  officers,  agent or  agents,  in the name of and on  behalf  of the
Corporation  to enter  into or execute  and  deliver  any and all deeds,  bonds,
mortgages,  contracts and other  obligations or instruments,  and such authority
may be general or confined to specific instances.

         7.5 Dividends and  Reserves.  Subject to the  provisions of statute and
the  Corporation's  Certificate  of  Incorporation  dividends upon the shares of
capital  stock of

                                                                         Page 29
                                                                    Exhibit 3(a)

the  Corporation  may be  declared by the Board of  Directors  at any regular or
special  meeting,  and may be paid in cash, in property or in shares of stock of
the Corporation.

         7.6 Notice.  Whenever  under the  provisions of these  By-Laws  written
notice is required to be given to any  director,  officer,  or  stockholder,  it
shall not be construed to require personal notice, but unless otherwise provided
by these By-Laws, such notice shall be deemed to have been given in writing when
deposited  in  the  United  States  mail,  postage  prepaid,  directed  to  such
stockholder,  officer or director at his address as it appears on the records of
the Corporation.

         7.7 Voting of Stock in Other Corporations. Unless otherwise provided by
resolution of the Board of Directors,  the Chief Executive Officer, from time to
time,  may (or may  appoint one or more  attorneys  or agents to) cast the votes
which the  Corporation  may be entitled to cast as a stockholder or otherwise in
any other  corporation,  any of whose  shares or  securities  may be held by the
Corporation,  at meetings of the  holders of the shares or other  securities  of
such  other  corporation.  In the event  one or more;  attorneys  or agents  are
appointed,  the Chief  Executive  Officer may  instruct the person or persons so
appointed  as to the manner of casting  such votes or giving such  consent.  The
Chief Executive  Officer may, or may instruct the attorneys or agents  appointed
to, execute or cause to be executed in the name and on behalf of the Corporation
and under its seal or  otherwise,  such written  proxies,  consents,  waivers or
other instruments as may be necessary or proper in the circumstances.

         7.8 Indemnification. (a) Each director or officer or former director or
officer of the Corporation or any person who may have served at its request as a
director  or officer of another  corporation  in which it owns shares of capital
stock or of which it is a creditor,  shall be  indemnified  and held harmless by
the Corporation,  as hereinafter  provided,  against any and all liabilities and
counsel fees, costs and legal and other expenses (including, without limitation,
fines, penalties,  judgments and amounts paid in settlement) reasonably incurred
by or imposed on him in  connection  with or resulting  from any claim,  action,
suit or proceeding, whether civil, criminal, administrative or investigative, or
any appeal  therein,  in which he may be or become involved or with which he may
be threatened,  as a party or otherwise, by reason of his now or hereafter being
or having  heretofore  been a director or officer of the  Corporation or of such
other  corporation,  or by reason of his alleged acts or omissions as a director
or officer as aforesaid, whether or not he continues to be such at the time such
liabilities,  fees,  costs or expenses shall have been  incurred,  provided such
director  or  officer  shall be  indemnified  and  held  harmless  against  such
liabilities,  fees,  costs and  expenses,  only if he acted in  relation to such
matters in good faith for a purpose  which he  reasonably  believed to be in the
best interests of the Corporation.

                  (b) In discharging his duty to the Corporation,  a director or
officer,  when acting in good faith,  may rely upon financial  statements of the
Corporation  represented to him to be correct by, the officer of the Corporation
having  charge of its  books of  accounts,  or stated in a written  report by an
independent  public or certified  public  accountant or firm of such accountants
fairly to reflect the financial condition of such corporation.

Page 30
                                                                    Exhibit 3(a)

                  (c) Termination of a claim,  action or proceeding by judgment,
order, settlement (whether with or without court approval), conviction or upon a
plea of guilty or of nolo  contendere,  or its  equivalent,  shall not of itself
create a  presumption  that a director or officer  did not meet the  standard of
conduct set forth above.

                  (d) The grant of an  indemnification  provided herein,  unless
approved  by a court  in a final  adjudication  of a  claim,  action,  suit,  or
proceeding or in connection with a court approved settlement  thereof,  shall be
made pursuant to a direction of the Board of Directors of the  Corporation,  but
may be granted only (i) if the Board of Directors, acting by a quorum consisting
of directors not parties to such claim,  action, suit or proceeding,  shall have
determined  that in its opinion the  director or officer has met the standard of
conduct  set forth  above or (ii) in the event  such a quorum is not  obtainable
with due  diligence,  then  alternatively  if the Board of Directors  shall have
received the written advice of independent legal counsel selected by it, that in
the  latter's  judgment  such  applicable  standard  of conduct has been met. If
several  claims,  issues,  matters  or  actions  are  involved  in the  grant of
indemnification   provided   herein,  a  director  or  officer  may  be  granted
indemnification  by the Board of  Directors to the extent of that portion of the
liabilities,  fees,  costs and  expenses  which are  allocable  to such  claims,
issues,  matters  or actions  in  respect  of which it is  determined  that such
director or officer has met the standard of conduct set forth above.

                  (e) Expenses incurred with respect to any claim,  action, suit
or proceeding may be advanced by the Corporation  prior to the final disposition
thereof  upon  receipt  of an  undertaking  by or on behalf of the  director  or
officer to repay such amount unless it shall ultimately be determined that he is
entitled to indemnification hereunder.

                  (f) The rights to the  indemnification  provided  herein shall
inure  to  the  benefit  of  the  heirs,  executors,  administrators,  or  legal
representatives  of the  persons  covered  hereby;  shall be in  addition to any
rights to which any such person may  otherwise  be entitled by any  provision of
law,  articles of  incorporation,  by-law,  contract,  vote of  stockholders  or
otherwise;  and shall be in addition to and not in  restriction or limitation of
any other privilege or power which the  Corporation  may lawfully  exercise with
respect to the  indemnification  or  reimbursement  of  directors,  officers and
others.

                  (g) If any part of this Section shall be found, in any action,
suit or proceeding, to be invalid or ineffective, the validity and the effect of
the remaining parts shall not be affected.

                  (h) The rights of  indemnification  provided  herein shall not
arise with respect to conduct subsequent to January 5, 1987, which conduct shall
be subject to the  indemnification  provisions set forth in Article Fifteenth of
the Corporation's Certificate of Incorporation.

         7.9 Amendments.  These By-Laws may be adopted,  amended or repealed (i)
by the affirmative  vote of a majority of the directors  present at a meeting at
which a quorum is  present  unless the  Certificate  of  Incorporation  or these
By-Laws shall  require a

                                                                         Page 31
                                                                    Exhibit 3(a)

vote of a greater  number,  or (ii) by the  affirmative  vote of the  holders of
two-thirds of the voting power of all of the outstanding shares of capital stock
of the  Corporation at any regular or special  meeting of stockholders if notice
of the proposed amendment is contained in the notice of the meeting or waived by
all of the stockholders entitled to vote.