What does it mean if a vessel is "not under command"?

The term "not under command" describes a situation where a vessel is unable to maneuver as required by the rules of navigation, typically due to a mechanical failure or other circumstances that prevent it from being controlled effectively. This status indicates that the vessel cannot take the actions necessary to avoid collisions or respond to navigational demands, and it usually implies that the vessel may require assistance from other vessels or emergency services.

When a vessel is declared "not under command," it is important for other vessels in the vicinity to be aware of this condition, as it signifies that the affected vessel cannot adhere to standard navigational protocols. This declaration helps ensure that safety measures are taken by other mariners, who should exercise caution around such vessels and may need to assist them.

The other options do not accurately reflect the legal definition or implications of a vessel being "not under command." For example, describing a vessel as sailing with the wind does not indicate its capability for maneuvering. Similarly, a vessel with mechanical issues but still able to navigate does not meet the criteria of being "not under command." Waiting for instructions from the coast guard does not specify the vessel’s maneuverability status either. Thus, the choice that states the vessel is unable to maneuver and may require assistance aligns accurately