§ 1241s. Restrictions on operations of American Great Lakes vessels

(a) In general
Subject to subsection (b) of this section, an American Great Lakes vessel shall not be used—
(1) to engage in trade—
(A) from a port in the United States that is not located on the Great Lakes; or
(B) between ports in the United States;
(2) to carry bulk cargo (as that term is defined in section 1702 of this Appendix [1] which is subject to section 1241 (b) or 1241f of this Appendix, or section 2631 of title 10; or
(3) to provide any service other than ocean freight service—
(A) as a contract carrier; or
(B) as a common carrier on a fixed advertised schedule offering frequent sailings at regular intervals in the foreign commerce of the United States.
(b) Off-season carriage exception
(1) In general
Subject to paragraph (2), an American Great Lakes vessel may be used to engage in trade otherwise prohibited by subsection (a)(1)(A) of this section for not more than 90 days during any 12-month period.
(2) Limitation
An American Great Lakes vessel shall not be used during the Great Lakes shipping season to engage in trade referred to in paragraph (1).

[1] So in original. Probably should be followed by a closing ­parenthesis.