Page 1 of 12
                                                         Exhibit Index on Page 2

                                   FORM 11-K

                                 UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


Annual Report Pursuant to Section 15(d) of the Securities Exchange Act
of 1934




(Mark One)

  [X]   ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES
        EXCHANGE ACT OF 1934.
             For the fiscal year ended:  December 31, 1999

  OR

  [ ]   TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE
        ACT OF 1934.
             For the transition period from       to



Commission file number     1- 3208

  A.    Full title of the plan and the address of the plan, if
        different from that of the issuer named below:

        National Linen Service Retirement and 401(k) Plan for Eligible
          Management Associates

  B.    Name of issuer of the securities held pursuant to the plan and
        the address of the principal executive office:

        National Service Industries, Inc.
        1420 Peachtree Street, NE
        Atlanta, Georgia 30309



Page 2

REQUIRED INFORMATION

The following documents are filed as a part of this report:

1.   Financial Statements


     Plan  financial  statements  prepared  in  accordance  with  the  financial
     reporting requirements of ERISA include the following:

     Report of Independent Public Accountants

     Statements of Net Assets Available for Benefits as of December
     31, 1999 and 1998

     Statement  of Changes  in Net  Assets  Available  for  Benefits for the
     Year Ended December 31, 1999

     Notes to Financial Statements

2.   Exhibits
                                                             Sequentially
                                                               Numbered
     The following exhibit is filed with this report:            Page

     23     Consent of Arthur Andersen LLP                       12



SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
trustees (or other persons who administer  the employee  benefit plan) have duly
caused this annual report to be signed on its behalf by the undersigned hereunto
duly authorized.

                              National Linen Service Retirement and 401(k) Plan
                              for Eligible Management Associates

Date: June 28, 2000           By:   National Service Industries, Inc.
                                    Plan Administrator

                              By:    /s/ James S. Balloun
                              Name:  James S. Balloun
                              Title: Chairman and Chief Executive Officer



                                                                          Page 3

                             National Linen Service
                           Retirement and 401(k) Plan
                       for Eligible Management Associates


                              Financial Statements
                        as of December 31, 1999 and 1998
                         Together With Auditors' Report





REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To the Plan Administrator of
National Linen Service
Retirement and 401(k) Plan
for Eligible Management Associates:


We have audited the accompanying statements of net assets available for benefits
of National  Linen Service  Retirement  and 401(k) Plan for Eligible  Management
Associates as of December 31, 1999 and 1998 and the related statement of changes
in net assets available for benefits for the year ended December 31, 1999. These
financial  statements  are the  responsibility  of the  Plan's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable  assurance about whether the financial  statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting  the amounts and  disclosures in the financial  statements.  An audit
also includes assessing the accounting principles used and significant estimates
made by  management,  as well as  evaluating  the  overall  financial  statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material  respects,  the net assets available for benefits of the Plan as of
December  31,  1999 and 1998 and the  changes  in its net assets  available  for
benefits for the year ended  December  31, 1999 in  conformity  with  accounting
principles generally accepted in the United States.



/s/ Arthur Andersen

Atlanta, Georgia
June 8, 2000



Page 4



                             NATIONAL LINEN SERVICE

                           RETIREMENT AND 401(k) PLAN

                       FOR ELIGIBLE MANAGEMENT ASSOCIATES

                 STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS

                           DECEMBER 31, 1999 AND 1998







                                                       1999              1998
                                                    ----------       -----------
INVESTMENT IN NSI DC TRUST,
     at fair value (Notes 2 and 3)                  $7,259,014       $5,322,488
CONTRIBUTIONS RECEIVABLE:
    Employer                                               184              373
    Participant                                            131              977
                                                    ----------       -----------
              Total contributions receivable               315            1,350
                                                    ----------       -----------
NET ASSETS AVAILABLE FOR BENEFITS                   $7,259,329       $5,323,838
                                                    ==========       ===========






The accompanying notes are an integral part of these statements.



                                                                          Page 5


                             NATIONAL LINEN SERVICE

                           RETIREMENT AND 401(k) PLAN

                       FOR ELIGIBLE MANAGEMENT ASSOCIATES

            STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS

                      FOR THE YEAR ENDED DECEMBER 31, 1999








CONTRIBUTIONS:
    Employer, net of forfeitures                                     $  239,286
    Participant                                                       1,363,189
                                                                     -----------
           Total contributions                                        1,602,475

NET GAIN FROM INVESTMENT IN NSI DC TRUST (Note 3)                       326,292

BENEFITS PAID TO PARTICIPANTS                                          (892,543)

INTERPLAN TRANSFERS and other                                           899,267
                                                                     -----------
NET INCREASE                                                          1,935,491

NET ASSETS AVAILABLE FOR BENEFITS, beginning of year                  5,323,838
                                                                     -----------
NET ASSETS AVAILABLE FOR BENEFITS, end of year                       $7,259,329
                                                                     ===========







The accompanying notes are an integral part of this statement.



Page 6


                             NATIONAL LINEN SERVICE

                           RETIREMENT AND 401(k) PLAN

                       FOR ELIGIBLE MANAGEMENT ASSOCIATES

                          NOTES TO FINANCIAL STATEMENTS

                           DECEMBER 31, 1999 AND 1998



  1.     PLAN DESCRIPTION

The following is a brief  description of the National  Linen Service  Retirement
and 401(k) Plan for Eligible Management  Associates (the "Plan") of the National
Linen Service Division (the "Company") of National Service  Industries,  Inc. of
Georgia, a wholly owned subsidiary of National Service Industries, Inc. ("NSI").
This  description  is provided for  informational  purposes  only.  Participants
should refer to the plan agreement for more complete information.

General

The Plan is a defined  contribution  plan established  effective January 1, 1994
under the provisions of Section 401(a) of the Internal Revenue Code (the "IRC").
The Plan  covers all  nonunion  management  employees  of the  Company  who have
attained  the age of 20.5 and have at least 6  months  of  service.  The Plan is
subject to the provisions of the Employee Retirement Income Security Act of 1974
("ERISA"), as amended.

Contributions

Participants  may elect to contribute  between 1% and 15% (effective  January 1,
1999) of  before-tax  compensation,  as defined in the Plan,  subject to certain
limitations under the IRC. Matching  contributions are made by the Company in an
amount  equal  to  50%  of  the  participant's  contribution,  up to  4% of  the
participant's annual compensation. Additional discretionary matching amounts, as
determined by the board of directors of NSI, may be  contributed  by the Company
and are  allocated to  participants  employed by the Company and who were making
deferrals on the last day of the plan year based on relative elective  deferrals
or at the discretion of the Company on a per capita basis.

Additional  discretionary  profit-sharing amounts, as determined by the board of
directors  of NSI,  may be  contributed  by the  Company  and are  allocated  to
participants  employed  by the Company on the last day of the plan year based on
relative compensation or at the discretion of the Company on a per capita basis.

Vesting

Participants are always fully vested in their individual contributions.  Vesting
of employer  contributions occurs 20% for each year of service, as defined, with
100% vesting after five years of service.  Nonvested employer  contributions are
forfeited upon a  participant's  withdrawal from the Plan and are used to reduce
future employer contributions.


                                                                          Page 7

Administration

All administrative expenses of the Plan were paid by the Company during the year
ended December 31, 1999.

Participants' Accounts

Individual  accounts  are  maintained  for each of the  Plan's  participants  to
reflect  the  particular   participant's   contributions  and  related  employer
contributions  as well as the  participant's  share of the Plan's income and any
related investment management fees and expenses.

If a  participant  transfers  employment  to a class of  employees  eligible  to
participate in the Plan,  such  participant's  account  balance in the Company's
plan for nonmanagement associates automatically transfers to the Plan as soon as
practicable following his/her eligibility for the Plan. Such transfers are shown
on the  statement of changes in net assets  available  for benefits as interplan
transfers.

Investment in Master Trust

The Plan's  assets are  commingled  in the  National  Service  Industries,  Inc.
Defined  Contribution  Plans Master Trust (the "NSI DC Trust") together with the
assets  of  certain  defined  contribution  plans of other  NSI  divisions.  The
investments of the NSI DC Trust are subject to certain administrative guidelines
and  limitations  as to the type and amount of  securities  held.  Certain  fund
assets are allocated to selected independent investment managers to invest under
these general guidelines.

Effective  January 1, 1998,  INVESCO Trust Company was appointed  trustee of the
NSI DC Trust.

Investment Options

The separate  investment  options made available  under the Plan may be changed,
eliminated, or modified from time to time by the investment committee of the NSI
DC Trust.  Participants make their investment  elections in 5% increments,  with
changes allowed on a daily basis.  Participants may not direct the investment of
company matching or profit-sharing contributions.  These are invested in the NSI
Stock Fund discussed below and are presented as  nonparticipant-directed in Note
5.

The separate investment options offered by the Plan are as follows:

     o    Diversified  Equity Fund.  This fund is invested in a mutual fund that
          is  designed  to invest in a broad  range of common  stocks  providing
          capital growth.

     o    Stable Value Fund.  This is a fixed income fund  designed to provide a
          steady  level of current  income  while  focusing on  preservation  of
          principal. The majority of this fund's assets are investment contracts
          ("GICs") and synthetic GICs with insurance  companies and banks.  This
          fund is managed by INVESCO Trust Company or its affiliates.

     o    Balanced Fund. This fund is invested in a commingled fund that invests
          in a  changing  mix of  high-quality  stocks  and  bonds.  The fund is
          designed to provide  capital  growth and current income while limiting
          the risk of  principal  loss.  This fund is managed  by INVESCO  Trust
          Company or its affiliates.

     o    NSI Stock Fund.  This fund is invested  primarily in NSI common stock,
          although it may hold other short-term investments from time to time. A
          participant may not direct more than 50% of his/her account balance to
          be invested in this fund.

Page 8

     o    International  Fund.  This  fund is  invested  in a mutual  fund  that
          invests in the stock of non-U.S.  companies and is designed to provide
          long-term growth.

     o    Index Fund. This fund is invested in a mutual fund that invests in all
          of the  stocks in the  Standard  & Poor's 500  Composite  Stock  Price
          Index.

     o    Small  Company  Fund.  This  fund is  invested  in a mutual  fund that
          invests  in  small or  emerging  companies  that  show  potential  for
          increased size and profitability.  The fund seeks little or no current
          income.  This  fund  is  managed  by  INVESCO  Trust  Company  or  its
          affiliates.

     o    Bond Index  Fund.  This fund is invested  in a  collective  trust that
          invests in a well-diversified  portfolio that is representative of the
          domestic investment-grade bond market.

Loans to Participants

The  Plan  permits  loans  to  participants  up to  the  lesser  of  50%  of the
participant's  vested account  balance or $50,000.  A participant has up to five
years to repay the principal  and interest,  unless the loan is for the purchase
of a primary  residence,  in which case the repayment period will be established
at the time the loan is approved.  Loan processing fees are charged  directly to
the participant's account.  Interest rates on loans to participants are based on
market rates, as determined by the plan  administrator.  The interest rate as of
December 31, 1999 was 9%.

Interest on loans is included  in the net gain from  investment  in NSI DC Trust
and is  allocated  to each  investment  fund based on  participants'  investment
elections.

Benefits

A participant is entitled to receive the  distribution of his/her vested account
balance upon death,  disability,  retirement  (age 65), or other  termination of
employment.  These  benefits are payable in a lump-sum  amount or can be paid in
installments at the participant's  election if his/her vested balance is greater
than $5,000 and he/she is age 55 or older.

Benefits are payable in cash, except that any portion of a participant's account
balance  which is invested in the NSI Stock Fund is  distributed  in the form of
shares  of NSI  common  stock,  with  fractional  shares  paid in  cash.  If the
equivalent number of shares to be distributed to a participant is less than 100,
then the  participant  may elect to  receive  cash  instead of shares as his/her
distribution.

Hardship   withdrawals  may  be  made  upon  proven  financial   hardship  of  a
participant,  as defined in the plan  agreement  and as  approved  by the Plan's
retirement committee.

Plan Termination

Although the Company  intends for the Plan to be  permanent,  the Plan  provides
that the Company has the right to discontinue  contributions or to terminate the
Plan at any time. In the event of plan  termination,  each participant  shall be
vested in the balance of his/her account and his/her  proportionate share of any
future adjustments.


                                                                          Page 9

  2.     SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Accounting

The  accounts  of the Plan are  maintained  by the  trustee on the cash basis of
accounting.  The accompanying  financial statements have been prepared using the
accrual  method  of  accounting  by  application  of  memorandum  entries.   The
preparation  of financial  statements  in  conformity  with  generally  accepted
accounting  principles  requires  the Plan's  management  to use  estimates  and
assumptions that affect the accompanying  financial  statements and disclosures.
Actual results could differ from these estimates.

Reclassifications

Statement of Position  ("SOP")  99-3,  "Accounting  for and Reporting of Certain
Defined  Contribution Plan Investments and Other Disclosure Matters," eliminates
the requirement for a defined contribution plan to disclose participant-directed
investment  programs.  SOP 99-3 was  adopted  for the 1999 plan  year,  and 1998
financial   statement   amounts  have  been   reclassified   to  eliminate   the
participant-directed   investment  program   disclosures.   In  addition,   unit
information  presented  in  the  prior  year's  financial  statements  has  been
eliminated in accordance with SOP 99-3.

Investment Valuation

Investments  of the NSI DC Trust,  except for the GICs, are stated at fair value
as determined by the trustee from quoted market prices.  Securities  traded on a
national  exchange  are  valued  at the last  reported  sales  price on the last
business day of the plan year; investments traded in the over-the-counter market
and listed securities for which no sale was reported on the last day of the plan
year are valued at the last reported bid price.

GICs included in the NSI DC Trust are fully benefit-responsive and are therefore
carried at contract  value (cost plus  accrued  interest) by the NSI DC Trust in
accordance  with SOP 94-4,  "Reporting of  Investment  Contracts for Welfare and
Pension Plans." At December 31, 1999 and 1998,  contract value approximates fair
value. At December 31, 1999, the weighted  average  crediting  interest rate was
6.18%.  For the year ended  December 31, 1999, the annual yield on the GICs held
by the NSI DC Trust was 6.4%.  For certain of the GICs held by the NSI DC Trust,
crediting  interest rates may be changed if certain events occur,  such as early
retirements,  plant  closings,  etc., but in no case are they adjusted to a rate
less than 0%.

GICs are  subject  to credit  risk based on the  ability of the  issuers to meet
interest or principal payments, or both, as they become due.

Certain  GICs  included in the NSI DC Trust are  synthetic;  that is, the NSI DC
Trust owns certain fixed-income  securities,  and the contract issuer provides a
"wrapper"  that  guarantees  a  fixed  rate  of  return  and  provides   benefit
responsiveness.  At December 31, 1999 and 1998, the fair value of the underlying
assets  of the  synthetic  GICs  (determined  from  quoted  market  prices)  was
$54,030,000 and $48,749,000,  respectively, and the value of the related wrapper
contracts was $990,000 and $(1,232,000), respectively.


Page 10

  3.     NSI DC TRUST

Investment Income

Investment  income of the NSI DC Trust for the year ended  December  31, 1999 is
summarized as follows:

        Interest income                                             $ 4,392,012
        Dividends on NSI common stock                                   492,305
        Net depreciation in fair value of NSI common stock           (3,126,435)
        Net loss from common/collective trusts                         (389,640)
        Net income from mutual funds                                 21,103,949
                                                                     -----------
        Total investment income                                     $22,472,191
                                                                    ============

Net Assets

The net assets of the NSI DC Trust are as follows at December 31, 1999 and 1998:

                                                     1999              1998
                                                 -------------     -------------
        Mutual funds                             $150,101,844      $119,999,722
        Common/collective trusts                   61,734,231        72,307,360
        Guaranteed investment contracts            62,398,546        59,224,919
        NSI common stock                           11,026,746        15,348,609
        Loans receivable from participants          7,942,464         7,590,683
        Cash equivalents                            4,873,957                 0
                                                 -------------     -------------
                                                  298,077,788       274,471,293
        Accrued investment income                      23,712             6,608
        Adjustments for pending trades                219,969            19,658
        Accrued expenses and other                    (28,248)                0
                                                 -------------     -------------
        Net assets                               $298,293,221      $274,497,559
                                                 =============     =============

The allocation of the net assets of the NSI DC Trust to  participating  plans is
based on participant units and is as follows as of December 31, 1999 and 1998:



                                                            1999                         1998
                                                     Amount      Percent          Amount      Percent
                                                 -----------------------       ------------------------

                                                                                  
        National Linen Service Retirement
         and 401(k) Plan for Eligible
         Management Associates                   $   7,259,014     2.43%       $   5,322,488      1.94%
        All other plans                            291,034,207    97.57          269,175,071     98.06
                                                 -----------------------       ------------------------
                   Total                         $ 298,293,221   100.00%       $ 274,497,559    100.00%
                                                 =======================       ========================



Investment in NSI Common Stock

As of December 31, 1999 and 1998, approximately 3.7% and 5.6%, respectively,  of
the NSI DC Trust's net assets were  invested in the common stock of NSI, a party
in interest to the Plan.


                                                                         Page 11
  4.     TAX STATUS

The Plan has received a favorable determination letter from the Internal Revenue
Service dated  December 5, 1996 stating that the Plan was designed in accordance
with plan design  requirements  as of that date. The Plan has been amended since
receiving the determination  letter.  However,  the plan administrator  believes
that the Plan is currently designed and is being operated in compliance with the
applicable  requirements of the IRC. Therefore,  the plan administrator believes
that the Plan was  qualified  and that the related  trust was  tax-exempt  as of
December 31, 1999 and 1998.


  5.     NONPARTICIPANT-DIRECTED FUND INFORMATION

The  following   represents  the  net  assets  available  for  benefits  of  the
nonparticipant-directed portion of the Plan as of December 31, 1999 and 1998:

                                                          1999            1998
                                                       ----------      ---------
        Investment in NSI DC Trust                      $688,389        $737,988
        Contributions receivable--employer                   184             373
                                                       ----------      ---------
        Net assets available for benefits               $688,573        $738,361
                                                       ==========      =========

The  nonparticipant-directed  portion of the  investment  in the NSI DC Trust is
invested in the NSI Stock Fund.

The change in the  nonparticipant-directed  net assets available for benefits is
as follows for the year ended December 31, 1999:

        Contributions--employer, net of forfeitures                   $ 239,171
        Net loan activity and other                                     (56,319)
        Net loss from investment in NSI DC Trust                       (149,836)
        Benefits paid to participants                                   (82,804)
                                                                      ----------
        Net decrease                                                  $ (49,788)
                                                                      ==========