Page 33
                                                             Exhibit 10(iii)A(8)

                       NONQUALIFIED STOCK OPTION AGREEMENT
                 FOR EXECUTIVE OFFICERS AND DIVISION PRESIDENTS


     THIS  AGREEMENT,  made as of the 23rd day of  September,  1997 (the  "Grant
Date"),  between National Service Industries,  Inc., a Delaware corporation (the
"Company"), and Name (the "Optionee").

     WHEREAS,  the Company has adopted the  National  Service  Industries,  Inc.
Long-Term Achievement Incentive Plan (the "Plan") in order to provide additional
incentive  to  certain  officers  and  key  employees  of the  Company  and  its
Subsidiaries; and

     WHEREAS,  the Optionee  performs services for the Company and/or one of its
Subsidiaries; and

     WHEREAS,  the  Committee  responsible  for  administration  of the Plan has
determined to grant the Option to the Optionee as provided herein.

     NOW, THEREFORE, the parties hereto agree as follows:

     1. Grant of Option.

          1.1 The Company  hereby  grants to the  Optionee  the right and option
     (the  "Option") to purchase all or any part of an aggregate of Amount whole
     Shares  subject to, and in accordance  with,  the terms and  conditions set
     forth in this Agreement.

          1.2 The Option is not intended to qualify as an Incentive Stock Option
     within the meaning of Section 422 of the Code.

          1.3 This  Agreement  shall be construed in accordance  and  consistent
     with, and subject to, the  provisions of the Plan (the  provisions of which
     are  incorporated  herein by reference) and, except as otherwise  expressly
     set forth herein,  the capitalized  terms used in this Agreement shall have
     the same definitions as set forth in the Plan.

     2.  Purchase  Price.
The price at which the  Optionee  shall be entitled to purchase  Shares upon the
exercise of the Option shall be $44.3125 per Share.

     3. Duration of Option.
The Option shall be exercisable to the extent and in the manner  provided herein
for a period of ten (10)  years  from the  Grant  Date  (the  "Exercise  Term");
provided,  however,  that the Option may be earlier  terminated  as  provided in
Section 6 hereof.



Page 34
                                                             Exhibit 10(iii)A(8)

     4. Exercisability of Option.
Unless  otherwise  provided  in this  Agreement  or the Plan,  the Option  shall
entitle the Optionee to  purchase,  in whole at any time or in part from time to
time,  Para. Each such right of purchase shall be cumulative and shall continue,
unless sooner  exercised or terminated as herein  provided  during the remaining
period of the Exercise Term.

     5. Manner of Exercise and Payment.

          5.1  Subject to the terms and  conditions  of this  Agreement  and the
     Plan,  the Option may be  exercised  by delivery  of written  notice to the
     Company,  at its principal  executive office.  Such notice shall state that
     the Optionee is electing to exercise the Option and the number of Shares in
     respect of which the Option is being  exercised  and shall be signed by the
     person or persons  exercising  the Option.  If requested by the  Committee,
     such person or persons shall (i) deliver this Agreement to the Secretary of
     the Company who shall endorse  thereon a notation of such exercise and (ii)
     provide  satisfactory  proof as to the right of such  person or  persons to
     exercise the Option.

          5.2  The  notice  of  exercise  described  in  Section  5.1  shall  be
     accompanied  by the full purchase  price for the Shares in respect of which
     the Option is being exercised,  in cash, by check or by transferring Shares
     to the Company  having a Fair Market Value on the day preceding the date of
     exercise equal to the cash amount for which such Shares are substituted.

          5.3 Upon receipt of notice of exercise and full payment for the Shares
     in respect  of which the  Option is being  exercised,  the  Company  shall,
     subject to Section 17 of the Plan,  take such action as may be necessary to
     effect the  transfer  to the  Optionee  of the number of Shares as to which
     such exercise was effective.

          5.4 The  Optionee  shall not be deemed to be the holder of, or to have
     any of the rights of a holder  with  respect  to any Shares  subject to the
     Option until (i) the Option shall have been exercised pursuant to the terms
     of this  Agreement and the Optionee shall have paid the full purchase price
     for the number of Shares in respect of which the Option was exercised, (ii)
     the Company shall have issued and delivered the Shares to the Optionee, and
     (iii) the  Optionee's  name shall have been  entered  as a  stockholder  of
     record on the books of the Company,  whereupon the Optionee shall have full
     voting and other ownership rights with respect to such Shares.

     6. Termination of Employment.

          6.1 In General. If the employment of the Optionee with the Company and
     its Subsidiaries shall terminate for any reason, other than for the reasons
     set forth in Sections 6.2 and 7.2 below,  the Optionee's  right to exercise
     any then  outstanding  Options  (whether  or not  vested)  shall  terminate
     immediately upon termination of employment.




                                                                         Page 35
                                                             Exhibit 10(iii)A(8)

          6.2 Termination of Employment Due to Death, Disability.

               If the  Optionee's  termination  of  employment  is due to death,
          Disability  or  Retirement  (termination  on or after  age 65),  or if
          Optionee  terminates  employment  after age 55,  the  following  shall
          apply:

          (a)  Termination  Due To Death.  In the event the Optionee  dies while
               actively employed,  all vested Options at the date of death shall
               remain  exercisable  at any time prior to the  expiration  of the
               Exercise  Term  by (A) a  Permitted  Transferee  (as  defined  in
               Section 8 below),  if any, or such  person(s)  that have acquired
               the  Optionee's  rights under such Options by will or by the laws
               of descent and  distribution,  or (B) if no such person described
               in (A) exists,  the Optionee's  estate or  representative  of the
               Optionee's estate. All Options that are not vested as of the date
               of death shall be immediately forfeited.

          (b)  Termination  by  Disability.  In the event the  employment of the
               Optionee  is  terminated  by reason  of  Disability,  all  vested
               Options  as of the date the  Committee  determines  the  Optionee
               terminated  for Disability  shall remain  exercisable at any time
               prior to the  expiration of the Exercise  Term.  All Options that
               are not vested as of the date of termination for Disability shall
               be immediately forfeited.

          (c)  Termination  by  Retirement.  In the event the  employment of the
               Optionee is terminated by reason of  Retirement,  the  Optionee's
               Options shall  continue to vest in  accordance  with the original
               schedule  (just as if the  Optionee had  remained  employed)  and
               shall remain  exercisable  at any time prior to the expiration of
               the Exercise  Term.  In the event of the  Optionee's  death after
               Retirement, the Options shall continue to vest and be exercisable
               in  accordance  with this  subsection  (c) as if the Optionee had
               lived  and  the  Options  shall  be  exercisable  by the  persons
               described in (a) above.

          (d)  Termination  After  Attaining Age 55. If the Optionee  terminates
               employment  (other than as a result of death or Disability) after
               attaining  age 55 but  prior  to age  65,  unless  the  Committee
               determines  otherwise  at  the  time  of  such  termination,  the
               Optionee's  Options shall continue to vest in accordance with the
               original schedule (just as if the Optionee had remained employed)
               and shall remain  exercisable at any time prior to the expiration
               of the Exercise Term. In the event of the Optionee's  death after
               Retirement, the Options shall continue to vest and be exercisable
               in  accordance  with this  subsection  (d) as if the Optionee had
               lived  and  the  Options  shall  be  exercisable  by the  persons
               described in (a) above.




Page 36
                                                             Exhibit 10(iii)A(8)


     7. Effect of Change in Control.

          7.1  Notwithstanding  anything  contained  to  the  contrary  in  this
     Agreement, in the event of a Change in Control, (i) the Option shall become
     immediately and fully exercisable,  and (ii) the Optionee will be permitted
     to surrender for  cancellation  within sixty (60) days after such Change in
     Control,  the  Option or any  portion  of the  Option to the extent not yet
     exercised, and the Optionee shall be entitled to receive immediately a cash
     payment in an amount equal to the excess, if any, of (A) the greater of (x)
     the Fair Market Value on the date  preceding the date of surrender,  of the
     shares subject to the Option or portion of the Option  surrendered,  or (y)
     the  Adjusted  Fair  Market  Value of the  Shares  subject to the Option or
     portion thereof surrendered, over (B) the aggregate purchase price for such
     Shares under the Option; provided,  however, that if the Option was granted
     within six (6) months  prior to the Change in Control and the  Optionee may
     be subject to  liability  under  Section  16(b) of the  Exchange  Act,  the
     Optionee  shall be entitled to surrender the Option,  or any portion of the
     Option,  for  cancellation  during the sixty (60) day period  following the
     expiration  of six (6) months from the Grant Date and to receive the amount
     described above with respect to such surrender for cancellation.

          7.2 If the  employment  of the Optionee is  terminated  within two (2)
     years  following a Change in Control,  all vested Options shall continue to
     be  exercisable  at any time within  three (3) years after the date of such
     termination of employment, but in no event after expiration of the Exercise
     Term.

     8. Transferability.
The  Option  shall  not be  transferable  other  than by will or by the  laws of
descent  and  distribution.  Notwithstanding  the  foregoing,  the Option may be
transferred,  in whole or in part, without consideration,  by written instrument
signed by the Optionee,  to any members of the immediate  family of the Optionee
(i.e., spouse,  children and grandchildren),  any trusts for the benefit of such
family members or any  partnerships  whose only partners are such family members
(the "Permitted Transferees").  Appropriate evidence of any such transfer to the
Permitted  Transferees  shall  be  delivered  to the  Company  at its  principal
executive  office.  If all or part of the Option is  transferred  to a Permitted
Transferee,  the Permitted Transferee's rights hereunder shall be subject to the
same  restrictions  and limitations  with respect to the Option as the Optionee.
During the lifetime of the Optionee, the Option shall be exercisable only by the
Optionee, or if applicable, by the Permitted Transferees.

     9. No Right to Continued Employment.
Nothing in this  Agreement  or the Plan shall be  interpreted  or  construed  to
confer upon the Optionee any right with respect to  continuance of employment by
the Company or a Subsidiary,  nor shall this  Agreement or the Plan interfere in
any way  with  the  right  of the  Company  or a  Subsidiary  to  terminate  the
Optionee's employment at any time.




                                                                         Page 37
                                                             Exhibit 10(iii)A(8)

     10. Adjustments.
In the event of a Change in  Capitalization,  the Committee may make appropriate
adjustments  to the  number  and class of Shares  or other  stock or  securities
subject to the Option and the  purchase  price for such Shares or other stock or
securities.  The  Committee's  adjustment  shall be made in accordance  with the
provisions of Section 11 of the Plan and shall be effective  and final,  binding
and conclusive for all purposes of the Plan and this Agreement.

     11. Terminating Events.
Subject to Section 7 hereof,  upon the effective date of (i) the  liquidation or
dissolution of the Company or (ii) a merger or  consolidation  of the Company (a
"Transaction"), the Option shall continue in effect in accordance with its terms
and the Optionee  shall be entitled to receive in respect of all Shares  subject
to the Option,  upon exercise of the Option,  the same number and kind of stock,
securities, cash, property or other consideration that each holder of Shares was
entitled to receive in the Transaction.

     12. Withholding of Taxes.
The Company shall have the right to deduct from any  distribution of cash to the
Optionee an amount equal to the federal,  state and local income taxes and other
amounts as may be required by law to be withheld (the "Withholding  Taxes") with
respect to the  Option.  If the  Optionee  is  entitled  to receive  Shares upon
exercise of the Option,  the  Optionee  shall pay the  Withholding  Taxes to the
Company in cash prior to the issuance of such  Shares.  In  satisfaction  of the
Withholding   Taxes,  the  Optionee  may  make  a  written  election  (the  "Tax
Election"),  which  may  be  accepted  or  rejected  in  the  discretion  of the
Committee,  to have withheld a portion of the Shares issuable to him or her upon
exercise  of the Option,  having an  aggregate  Fair  Market  Value equal to the
withholding  Taxes,  provided  that, if the Optionee may be subject to liability
under  Section  16(b) of the Exchange  Act,  the  election  must comply with the
requirements applicable to Share transactions by such Optionees.

     13. Employee Bound by the Plan.
The Optionee hereby acknowledges  receipt of a copy of the Plan and agrees to be
bound by all the terms and provisions thereof.

     14. Modification of Agreement.
This Agreement may be modified,  amended, suspended or terminated, and any terms
or conditions may be waived,  but only by a written  instrument  executed by the
parties hereto.

     15. Severability.
Should  any  provision  of  this  Agreement  be held  by a  court  of  competent
jurisdiction  to be  unenforceable  or invalid  for any  reason,  the  remaining
provisions  of this  Agreement  shall not be affected by such  holding and shall
continue in full force in accordance with their terms.




Page 38
                                                             Exhibit 10(iii)A(8)

     16. Governing Law.
The validity,  interpretation,  construction  and  performance of this Agreement
shall be governed by the laws of the State of Delaware  without giving effect to
the conflicts of laws principles thereof.

     17. Successors in Interest.
This Agreement  shall inure to the benefit of and be binding upon each successor
corporation.  This Agreement shall inure to the benefit of the Optionee's  legal
representatives.  All  obligations  imposed  upon the  Optionee  and all  rights
granted  to the  Company  under  this  Agreement  shall be  final,  binding  and
conclusive  upon  the  Optionee's  heirs,   executors,   Permitted  Transferees,
administrators and successors.

     18. Resolution of Disputes.
Any dispute or disagreement  which may arise under, or as a result of, or in any
way relate to, the interpretation, construction or application of this Agreement
shall be determined by the Committee.  Any determination made hereunder shall be
final, binding and conclusive on the Optionee and the Company for all purposes.



ATTEST:                                      NATIONAL SERVICE INDUSTRIES, INC.




/s/ Kenyon W. Murphy                         By:  /s/ James S. Balloun
           Secretary                                  James S. Balloun
                                                      Chairman, President, and
                                                      Chief Executive Officer






                                                     Name of Optionee: