SECOND SUPPLEMENTAL INDENTURE

                             Dated as of September 30, 1996

                                         between

                          ROLLINS ENVIRONMENTAL SERVICES, INC.

                                     (the "Company")

                                           and

                        FIRST FIDELITY BANK, NATIONAL ASSOCIATION

                                     (the "Trustee")

                         Supplementing and amending that certain

                                        Indenture

                           Between the Company and the Trustee

                               Dated as of March 31, 1995

                                       Relating to

                              $13,839,000 Principal Amount

                                           of

                       7.75% Senior Unsecured Debentures Due 2005






       This Second Supplemental Indenture dated as of September 30, 1996 (the
"Second Supplemental Indenture") between ROLLINS ENVIRONMENTAL SERVICES, 
INC., a corporation duly organized and existing under the laws of the State 
of Delaware (herein called the "Company"), having its principal executive 
offices at 2200 Concord Pike, One Rollins Plaza, Wilmington, Delaware 19803, 
and FIRST FIDELITY BANK, NATIONAL ASSOCIATION, a national banking
association, as Trustee (herein called the "Trustee"), supplements and amends
that certain Indenture between the Company and the Trustee dated as of 
March 31, 1995 (the "Indenture") relating to $13,839,000 Principal Amount of
the Company's 7.75% Senior Unsecured Debentures Due 2005, as amended by the 
First Supplemental Indenture dated as of September 30, 1995 (the "First
Supplemental Indenture").

       WHEREAS, Westinghouse Electric Corporation, as the holder of 100% in
principal amount of the Securities, has consented to this Second Supplemental
Indenture in accordance with Section 8.2 of the Indenture; and

       WHEREAS, the execution and delivery of this Second Supplemental 
Indenture have been and are in all respects duly and validly authorized by a
resolution duly adopted by the Company;

       NOW, THEREFORE, THIS SECOND SUPPLEMENTAL INDENTURE WITNESSETH:

       That the parties hereto, intending to be legally bound hereby and in
consideration of the mutual covenants herein contained, DO HEREBY AGREE as
follows:

                                        ARTICLE I

                                CONFIRMATION OF INDENTURE

Section 1.1.  Confirmation of Indenture.  Except as supplemented and amended
hereby, the Indenture is hereby confirmed and reaffirmed in all particulars. 
The First Supplemental Indenture is hereby terminated and of no further force 
and effect.  The Indenture shall be read, taken and construed as one and the
same instrument, notwithstanding the date and time of execution and delivery
of each instrument.  Terms not otherwise defined herein shall have the 
meaning ascribed to them in the Indenture.  Anything in the Indenture to the 
contrary notwithstanding, all provisions contained in this Second 
Supplemental Indenture shall take precedence over the provisions of the 
Indenture to the extent of any conflict between the two.

                                       ARTICLE II

                                   NEGATIVE COVENANTS

Section 2.1.  Maintenance of Fixed Charges Coverage Ratio.  Section 10.1 of 
the Indenture is hereby amended and restated to read as follows:

       "Section 10.1Maintenance of Fixed Charges Coverage Ratio.

       The Company will maintain the following Fixed Charges Coverage Ratio: 

             Period Ending                     Ratio

             September 30, 1996                       0.63 : 1.00
             December 31, 1996                        0.65 : 1.00
             March 31, 1997                           0.80 : 1.00
             June 30, 1997                            1.10 : 1.00
             September 30, 1997                       1.25 : 1.00
             December 31, 1997 and thereafter         1.50 : 1.00

       Notwithstanding the definition of Fixed Charges Coverage Ratio in 
Section 1.1, the ratio for any period ending on or before September 30, 1997 
shall be computed for that fiscal quarter only, the ratio for December 31, 
1997 shall be computed for the that fiscal quarter together with the
immediately preceding fiscal quarter, and the ratio for March 31, 1998 shall
be computed for that fiscal quarter together with the immediately preceding 
two fiscal quarters."

Section 2.1  Maintenance of Net Worth.

       Section 10.2 of the Indenture is hereby amended to replace 
$160,000,000 with $145,000,000.  "Tangible Net Worth" for purposes of 
Section 10.2 shall be calculated to exclude the effect of any
extraordinary gain or loss occurring after June 30, 1996.


       IN WITNESS WHEREOF, FIRST FIDELITY BANK, NATIONAL ASSOCIATION and
ROLLINS ENVIRONMENTAL SERVICES, INC. have caused this Second Supplemental
Indenture to be duly executed by its authorized officers as of the day and 
year first above written.

                                        FIRST FIDELITY BANK, 
                                           NATIONAL ASSOCIATION



                                        By:                                     
                                               Title:                           

                                        ROLLINS ENVIRONMENTAL 
                                           SERVICES, INC.



                                        By:                                     
                                               Title:                
          

       Westinghouse Electric Corporation, as the holder of 100% of the 
Securities, hereby approves and consents to the foregoing Second Supplemental
Indenture.

                                        WESTINGHOUSE ELECTRIC
                                        CORPORATION



                                        By:                                     
                                               Title: