Regulations last checked for updates: Apr 28, 2024

Title 40 - Protection of Environment last revised: Jun 26, 2024
authority: 33 U.S.C. 1345(d) and (e); 42 U.S.C. 6902(a), 6907, 6912(a), 6944, 6945(c) and 6949a(c), 6981(a)
source: 56 FR 51016, Oct. 9, 1991, unless otherwise noted.