In this part—

(1) "Convention" means the International Convention on Tonnage Measurement of Ships, 1969.

(2) "existing vessel" means a vessel the keel of which was laid or that was at a similar stage of construction before July 18, 1982.

(3) "Great Lakes" means—

(A) the Great Lakes; and

(B) the St. Lawrence River west of—

(i) a rhumb line drawn from Cap des Rosiers to West Point, Anticosti Island; and

(ii) on the north side of Anticosti Island, the meridian of longitude 63 degrees west.

(4) "vessel that engages on a foreign voyage" means a vessel—

(A) that arrives at a place under the jurisdiction of the United States from a place in a foreign country;

(B) that makes a voyage between places outside the United States;

(C) that departs from a place under the jurisdiction of the United States for a place in a foreign country; or

(D) that makes a voyage between a place within a territory or possession of the United States and another place under the jurisdiction of the United States not within that territory or possession.