Department of the Treasury, DY, U.S. Customs Service, Procurement Division, 1300 Pennsylvania Avenue, Suite 4.2-E, Washington, DC 20229

A -- RESEARCH & DEVELOPMENT FOR NON-INTRUSIVE INSPECTION OF FREIGHT TRAINS SOL BAA#USCS98-001 DUE 043098 POC Elizabeth Roberts, Contracting Officer, (202)927-2583 The purpose of this modification is to change the receipt of white papers from June 30, 1998 to April 30, 1998 for the non-intrusive detection technology. Additionally, change (,0.5 gm/cm3) to (<0.5 gm/cm3). All of the other items in Submission notice 175386, dated March 5, 1998, remain unchanged. (0072)

Loren Data Corp. http://www.ld.com (SYN# 0004 19980317\A-0004.SOL)