46 USC 3501 – Number of passengers
(a) Each certificate of inspection issued to a vessel carrying passengers (except a ferry) shall include a statement on the number of passengers that the vessel is permitted to carry.
Terms Used In 46 USC 3501
(b) The owner, charterer, managing operator, agent, master, or individual in charge of a vessel is liable to a person suing them for carrying more passengers than the number of passengers permitted by the certificate of inspection in an amount equal to—
(1) passage money; and
(2) $100 for each passenger in excess of the number of passengers permitted.
(c) An owner, charterer, managing operator, agent, master, or individual in charge of a vessel that knowingly carries more passengers than the number of passengers permitted by the certificate of inspection also shall be fined not more than $100, imprisoned for not more than 30 days, or both.
(d) The vessel also is liable in rem for a penalty under this section.
(e) An offshore supply vessel may not carry passengers except in an emergency.