National Institutes of Health, Office of Procurement Management, 6011 Executive Blvd., Rockville, Maryland 20892-7260

S -- EXERCISE FIRST OPTION PERIOD UNDER EXISTING CONTRACT TO PROVIDE THE NATIONAL INSTITUTES OF HEALTH CONTRACTUAL SUPPORT FOR A COMPREHENSIVE CHEMICAL AND LOW-LEVEL RADIOACTIVE WASTE MANAGEMENT AND DISPOSAL PROGRAM DURING THE PERIOD APRIL 1, 1999 THROUGH MARCH 31, 2000. POC Catherine Hiltner, Contract Specialist, (301) 402-3063; Edward Wilgus, Contracting Officer, (301) 402-3070 CNT Modification No. 5, Contract No. 263-98-D-0023 AMT $6,360,723.00 DTD 030399 TO Safety-Kleen (TS), Inc., 3527 Whiskey Bottom Road, Laurel, MD 20724 Posted 03/04/99 (W-SN304921). (0063)

Loren Data Corp. http://www.ld.com (SYN# 0443 19990308\S-0003.AWD)