DISA/DITCO/DTS22 2300 East Drive, Scott AFB, IL 62225- 5406

D -- PUERTO RICO AREA WIDEBAND SYSTEM (PRAWS) POC POC Sheila I. Isert Rotter, Contract Administrator, (618) 229-9681 CNT DCA200-98-C-0036 AMT $2,453,919.18 for one year base period and one option year. DTD 061698 TO GLS Associates, Inc., 44 Canal Center Plaza, Suite 320, Alexandria, VA 22314-1592 Posted 07/14/98 (W-SN222734). (0195)

Loren Data Corp. http://www.ld.com (SYN# 0488 19980716\D-0002.AWD)