INTERNATIONAL ONLY Where do the International Rules of the Road apply?

Correct Answer: Option B — Upon the high seas and connecting waters navigable by seagoing vessels

Rule 1(a) of the COLREGS specifies that these rules apply to all vessels upon the high seas and in all waters connected therewith navigable by seagoing vessels. This establishes the jurisdictional scope of the International Rules, distinguishing them from Inland Rules which apply specifically within U.S. territorial waters.