Page 33
                                                             Exhibit 10(iii)A(2)


Name
National Service Industries, Inc.
1420 Peachtree Street, NE
Atlanta, Georgia 30309-3002

         Re:      Amendment of Aspiration Award Agreement
                  for the Performance Cycle Ended August 31,1999

Dear ((Familiar)):

     As you know, you and NSI previously  entered into an agreement amending the
Aspiration  Achievement  Incentive  Award  Agreement  dated  September  17, 1996
("Aspiration  Award  Agreement")  relating to the Performance Cycle ended August
31,  1999.  Under that  amendment,  you  elected to receive  payment of all or a
portion of your Award under the Aspiration  Award Agreement in the form of stock
options to be determined  based on the Fair Market Value of NSI's stock, and the
associated  exchange rate, as of the Determination  Date, each as defined in the
amendment. As of October 7, 1999 (the Determination Date), the Fair Market Value
of NSI's stock was $32.8125 and the associated  exchange rate was 24.35%.  Based
on these  factors,  $((Cash)) of your award would be  exchanged  for options for
((Option))  shares.  It was  originally  contemplated  that the options would be
granted to you on October 7, 1999.

     Because of the inadequate  number of shares  remaining  under the Long-Term
Achievement  Incentive  Plan (the "Plan"),  NSI proposes that (a) the options be
granted to you in January 2000 after the shareholders  have approved the amended
and restated Plan (with the option  covering the number of shares  calculated as
of October 7, 1999 but the  exercise  price set as of the date of the grant) and
(b) in the event the  shareholders do not approve the amended and restated Plan,
that the Award be paid in cash or as otherwise determined by the Committee.

     Please  confirm your  acceptance of the foregoing by executing  this letter
agreement in the space provided below.

                                       National Service Industries, Inc.


                                       By:/s/ James S. Balloun
                                          James S. Balloun
                                          Chairman, President, and
Accepted and Agreed to:                   Chief Executive Officer


- --------------------------------------------

Date:  _____________________________________