Regulations last checked for updates: Nov 21, 2024

Title 40 - Protection of Environment last revised: Nov 19, 2024
authority: Secs. 301, 304 (b) and (c), 306 (b) and (c) and 307(c), Federal Water Pollution Control Act, as amended (the Act); 33 U.S.C. 1251,1311,1314,1316; 86 Stat. 816
source: 40 FR 31727, July 28, 1975, unless otherwise noted.