Rules of the Road USCG Question #1176 (Set 18)

INLAND ONLY The term "Great Lakes", as defined by the Inland Rules of the Road, does NOT include __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — the St. Lawrence River to Trois-Rivières

Rule 3(h) of the Inland Navigation Rules defines the Great Lakes. The definition explicitly excludes the St. Lawrence River to the east of the lower exit of St. Lambert Lock at Montreal, which includes the area up to Trois-Rivières, placing it outside the Inland Rules' Great Lakes jurisdiction.

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