[Code of Federal Regulations] [Title 45, Volume 3] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 45CFR640.1] [Page 191] TITLE 45--PUBLIC WELFARE CHAPTER VI--NATIONAL SCIENCE FOUNDATION PART 640_COMPLIANCE WITH THE NATIONAL ENVIRONMENTAL POLICY ACT--Table of Contents Sec. 640.1 Purpose. Sec. 640.1 Purpose. 640.2 Committee on Environmental Matters. 640.3 Actions requiring an environmental assessment and categorical exclusions. 640.4 Responsibilities and procedures for preparation of an environmental assessment. 640.5 Responsibilities and procedures for preparation of an environmental impact statement. Authority: NEPA; the Environmental Quality Improvement Act of 1970, as amended (42 U.S.C. 4371 et seq.); sec. 309 of the Clean Air Act, as amended (42 U.S.C. 7609); E.O. 11514, ``Protection and Enhancement of Environmental Quality'' (March 5, 1970, as amended by E.O. 11991, May 24, 1977); and CEQ regulations at 40 CFR Parts 1500 through 1508. Source: 45 FR 40, Jan. 2, 1980, unless otherwise noted. The purpose of this regulation is to adopt NSF procedures to supplement regulations at 40 CFR parts 1500 through 1508 (hereafter referred to as ``CEQ regulations'').