Regulations last checked for updates: Sep 29, 2023

Title 40 - Protection of Environment last revised: Sep 27, 2023
authority: 31 U.S.C. 3801–3812; Pub. L. 101–410, 104 Stat. 890, 28 U.S.C. 2461 note; Pub. L. 104–134, 110 Stat. 1321, 31 U.S.C. 3701 note
source: 53 FR 15182, Apr. 27, 1988, unless otherwise noted.