41 C.F.R. § 102-117.50 – Coastwise laws. | MidpageCoastwise laws.
Effective Dec 16, 2025
- (a) Coastwise laws (46 U.S.C. chapter 551) require the use of U.S.-flag, coastwise-endorsed vessels for domestic water shipments between U.S. ports.
- (b) For exceptions and further information, refer to regulations issued by the U.S. Customs and Border Protection (CBP) (19 CFR 4.80) and MARAD.