Regulations last checked for updates: Jan 26, 2026

Title 33 - Navigation and Navigable Waters last revised: Jan 22, 2026
authority: 14 U.S.C. 544; 43 U.S.C. 1333; 46 U.S.C. 70031,70041; DHS Delegation 00170.1, Revision No. 01.4
source: CGD 86-031, 52 FR 42640, Nov. 6, 1987, unless otherwise noted.