Regulations last checked for updates: Nov 24, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
authority: 5 U.S.C. 552,as. L. 93-502, Pub. L. 99-570, Pub. L. 104-231, Pub. L. 110-175; E.O. 13392; Pres. Mem. 74 FR 4685. Source: 42 FR 65158, Dec. 30, 1977, unless otherwise noted
source: 75 FR 48590, Aug. 11, 2010, unless otherwise noted.