Great Lakes
Great Lakes means Lakes Superior, Michigan, Huron, Erie, and Ontario, their connecting and tributary waters, the Saint Lawrence River as far as Saint Regis, and adjacent port areas.
Source
33 CFR § 160.202
Scoping language
Terms in this subpart that are not defined in this section or in 160.3 have the same meaning as those terms in 46 U.S.C. 2101. As used in this subpart