Your vessel is in Charleston, S.C. You need not clear Customs if __________.

Correct Answer: Option B — all the cargo on board is of U.S. origin and destined for New York

Customs clearance is generally required for vessels arriving from foreign ports. However, a vessel moving exclusively between U.S. ports with cargo of U.S. origin, and not having touched a foreign port or engaged in foreign trade, is exempt from formal entry and clearance requirements under standard Customs and Border Protection regulations.