Regulations last checked for updates: Feb 21, 2025

Title 40 - Protection of Environment last revised: Nov 21, 2025
authority: Sec. 7002, Pub. L. 94-580, 90 Stat. 2825 (42 U.S.C. 6972)
source: 42 FR 56114, Oct. 21, 1977, unless otherwise noted.