Regulations last checked for updates: Sep 29, 2023

Title 40 - Protection of Environment last revised: Sep 27, 2023
authority: Secs. 301, 304, 306, 307, 308, 402 and 501 of the Clean Water Act, as amended (33 U.S.C. 1311,1314,1316,1317,1318,1342
source: 65 FR 3048, Jan. 19, 2000, unless otherwise noted.