National Institutes of Environmental Health Sciences, Research Contracts Branch, DERT, P.O. Box 12874, Building 4401, Research Commons, 79 T.W. Alexander Drive, Research Triangle Park, NC 27709

A -- STUDIES TO EVALUATE DIOXIN TOXIC EQUIVALENCY FACTORS SOL N01-ES-75411 DUE 062199 POC Saundra Walsh, Contract Specialist 919/541-0419 WEB: None, None. E-MAIL: None, None. The National Institute of Environmental Health Sciences intends to negotiate with Battelle Memorial Institute, Battelle Columbus Operations to conduct P450 assays on liver and lung samples generated from the seven (7) studies being conducted in the Dioxin TEF Project. The contract period shall not be extended as a result of this effort. The Government anticipates an approximate level-of-effort of 3,000 hours for this additional task. Authority: 41 U.S.C. 253 (c)(1), as set forth in FAR 6.302-1 and HHSAR 306-302-1. Inherent duplication of cost to the Government and unacceptable delays in completing the project make competition unfeasible for the additional tests required to complete the study. See numbered Note 22.***** Posted 05/19/99 (W-SN333545). (0139)

Loren Data Corp. http://www.ld.com (SYN# 0008 19990521\A-0008.SOL)