Regulations last checked for updates: Feb 03, 2026

Title 40 - Protection of Environment last revised: Dec 31, 2026
authority: Section 319; Pub. L. 101-121 (31 U.S.C. 1352); 33 U.S.C. 1251
source: 55 FR 6737, 6753, Feb. 26, 1990, unless otherwise noted.