DEPARTMENT OF THE TREASURY, Internal Revenue Service, (M:P), 6009 Oxon Hill Road, Suite 700, Oxon Hill, MD 20745

B -- PROVIDE EXPERT STATISTICAL SAMPLING TECHNIQUES SOL TIRNO97R00065 DUE 090197 POC Contract Specialist, Helen Carmona, 202-283-1514 (FAX) The purpose of this modification is to correct the information contained in the original notice for this proposed sole-source acquisition to Dr. Donald M. Roberts of Urbana, IL, for expert statistical/auditing sampling techniques published on August 15, 1997. The proposed contract period will have a 12 month base period with four (4) one-year option periods. (0234)

Loren Data Corp. http://www.ld.com (SYN# 0026 19970826\B-0005.SOL)