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

S -- EXERCISE SECOND 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, 2000 THROUGH MARCH 31, 2001. POC Catherine Hiltner, Contract Specialist, (301) 402-3063; Edward B. Wilgus, Contracting Officer, (301) 402-3070 CNT Modification No. 7, Contract No. 263-98-D-0023 AMT $6,675,985.00 DTD 021600 TO Safety-Kleen (TS), Inc., 3527 Whiskey Bottom Road, Laurel, MD 20724 Posted 02/17/00 (W-SN426356). (0048)

Loren Data Corp. http://www.ld.com (SYN# 0328 20000222\S-0001.AWD)