National Institute of Environmental Health Sciences, Contracts and Procurement Management Branch, OM, 79 T.W. Alexander Drive, 4401 Building, P.O. Box 12874, Research Triangle Park, NC 27709

R -- LITERATURE SEARCH AND SUMMARY SUPPORT FOR THE ENVIRONMENTAL TOXICOLOGY PROGRAM POC Contact Point: Katherine A. Hughes, Contracting Officer, (919) 541-0420 The National Institute of Environmental Health Sciences (NIEHS) intends to negotiate with Rao Enterprises, Inc., d/b/a Integrated Laboratory Systems as a sole source under the authority of 41 U.S.C. 253(c)(1) to increase the work to be performed by expanding Task 1. It is estimated that this expansion will represent an approximate increase of 23 percent in the Level of Effort for the basic contract. The increase in the level of effort will pertain to genetic toxicity review and evaluation, and report preparation. See Note 22. (0086)

Loren Data Corp. http://www.ld.com (SYN# 0076 19970331\R-0016.SOL)