Regulations last checked for updates: Nov 21, 2024

Title 40 - Protection of Environment last revised: Nov 19, 2024
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,and
source: 65 FR 4381, Jan. 27, 2000, unless otherwise noted.