What “vessels” are required to comply with the Navigation Rules?

What “vessels” are required to comply with the Navigation Rules? In Rule 3 the word vessel includes every description of watercraft, including non-displacement craft, WIG craft, and seaplanes, used or capable of being used as a means of transportation on water. 

Courts have interpreted transportation to not just include passengers, but also goods or services. The Navigation Rules address vessels, not whom/what is controlling them.

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