18 U.S.C. § 1695 : US Code - Section 1695: Carriage of matter out of mail on vessels

Search 18 U.S.C. § 1695 : US Code - Section 1695: Carriage of matter out of mail on vessels

Whoever carries any letter or packet on board any vessel which
carries the mail, otherwise than in such mail, shall, except as
otherwise provided by law, be fined under this title or imprisoned
not more than thirty days, or both.