USCG Exam PracticeRule 3 — General Definitions
Under the Inland Navigation Rules, a vessel is considered 'underway' when she is in which condition?
- A. Making way through the water under her own power
- ✓ Not at anchor, not made fast to the shore, and not agroundCorrect
- C. Proceeding at any speed greater than zero knots
- D. Not aground and not moored to a buoy
Why B is correct
33 CFR §83.03(i) defines 'underway' as a vessel that is not at anchor, or made fast to the shore, or aground. Making way is not required; a vessel adrift is still underway by this definition.
Cited:33 CFR §83.03(i)