The National Institute of Environmental Health Sciences intends to negotiate with Integrated Laboratory Systems, Inc. for Contract N01-ES-75412, to conduct genetic toxicity testing of rodents and to examine chemicals for somatic cell genetic effects in animals. The level of effort is to be increased by 7,289.5 direct labor hours and the contract cost will be increased by $180,472 as a result of the increased level of effort. 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 work required. See numbered Note 22.

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