International voyage means a voyage between a country to which SOLAS applies and a port outside that country. A country, as used in this definition, includes every territory for the internal relations of which a contracting government to the convention is responsible or for which the United Nations is the administering authority. For the U.S., the term territory includes the Commonwealth of Puerto Rico, all possessions of the United States, and all lands held by the U.S. under a protectorate or mandate. For the purposes of this subchapter, vessels solely navigating the Great Lakes and the St. Lawrence River as far east as a straight line drawn from Cap des Rosiers to West Point, Anticosti Island and, on the north side of Anticosti Island, the 63rd meridian, are considered on an international voyage when on a voyage between a U.S. port and a Canadian port.
33 CFR § 101.105
Unless otherwise specified, as used in this subchapter: