Regulations last checked for updates: Jan 26, 2026

Title 33 - Navigation and Navigable Waters last revised: Jan 22, 2026
authority: 14 U.S.C. 503; 49 CFR 1.45(a); 49 CFR 1.45(b); 49 CFR 1.46(b), unless otherwise noted
source: CGD 80-033, 46 FR 27109, May 18, 1981, unless otherwise noted.