---identifier: "/us/cfr/t45/s640.1"source: "ecfr"legal_status: "authoritative_unofficial"title: "45 CFR § 640.1 - Purpose."title_number: 45title_name: "Public Welfare"section_number: "640.1"section_name: "Purpose."chapter_name: "NATIONAL SCIENCE FOUNDATION"part_number: "640"part_name: "COMPLIANCE WITH THE NATIONAL ENVIRONMENTAL POLICY ACT"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"authority: "NEPA; the Environmental Quality Improvement Act of 1970, as amended (42 U.S.C. 4371 ); 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."regulatory_source: "45 FR 40, Jan. 2, 1980, unless otherwise noted."cfr_part: "640"---
Identifier
/us/cfr/t45/s640.1
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
National Science Foundation
Authority
NEPA; the Environmental Quality Improvement Act of 1970, as amended (42 U.S.C. 4371 ); sec. 309 of the Clean Air Act, as amended (42 U.S.C. 7609); E.O. 11514, “Protection and Enhancement of Environmen... NEPA; the Environmental Quality Improvement Act of 1970, as amended (42 U.S.C. 4371 ); 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.
# 640.1 Purpose.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”).