Regulations last checked for updates: Apr 23, 2024

Title 40 - Protection of Environment last revised: Jun 26, 2024
authority: E.O. 12372, July 14, 1982 (47 FR 30959), as amended Apr. 8, 1983 (48 FR 15887); sec. 401 of the Intergovernmental Cooperation Act of 1968 as amended (31 U.S.C. 6506); sec. 204 of the Demonstration Cities and Metropolitan Development Act of 1966, as amended (42 U.S.C. 3334)
source: 48 FR 29300, June 24, 1983, unless otherwise noted.