The NAVIGATION RULES define a 'vessel not under command' as a vessel which through some exceptional circumstance, is unable to maneuver as required by the rules

The NAVIGATION RULES define a 'vessel not under command' as a vessel which through some exceptional circumstance, is unable to maneuver as required by the rules

• A. A vessel which through some exceptional circumstance, is unable to maneuver as required by the rules
• B. A vessel that is anchored
• C. A vessel towing another
• D. A vessel that is fishing

Answer: (A)

Not under command applies when a vessel cannot maneuver as required by the Rules because of an exceptional circumstance. That means power, steering, or handling has failed or another sudden problem prevents it from complying with the standard maneuvering obligations. This is exactly what the definition is saying, so it’s the best answer because it captures the formal, official meaning of the term. Anchored, towing, or fishing describe vessels in specific operational situations, not the inability to maneuver required by the Rules. An anchored vessel is at rest by choice or circumstance, and a towing vessel or a fishing vessel can still maneuver as needed unless they’re blocked by some exceptional failure. Thus they don’t fit the definition of not under command unless they actually have that exceptional inability to maneuver.

Not under command applies when a vessel cannot maneuver as required by the Rules because of an exceptional circumstance. That means power, steering, or handling has failed or another sudden problem prevents it from complying with the standard maneuvering obligations. This is exactly what the definition is saying, so it’s the best answer because it captures the formal, official meaning of the term.

Anchored, towing, or fishing describe vessels in specific operational situations, not the inability to maneuver required by the Rules. An anchored vessel is at rest by choice or circumstance, and a towing vessel or a fishing vessel can still maneuver as needed unless they’re blocked by some exceptional failure. Thus they don’t fit the definition of not under command unless they actually have that exceptional inability to maneuver.