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 .

((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.