How should a vessel display its navigation lights on a mooring?

A vessel that is at anchor, or in a mooring situation, must display its navigation lights properly, which includes the requirement to show white lights when not underway. Specifically, a vessel at anchor should exhibit an all-around white light visible from all directions to indicate its position to other vessels. This helps prevent collisions by ensuring that other mariners are aware of the vessel's presence.

While vessels under way must display red and green sidelights along with a white stern light, the requirement for anchored vessels is different due to their stationary status. Thus, displaying white lights serves as a clear indicator of a vessel at rest, allowing surrounding traffic to navigate appropriately.

This understanding highlights how important it is for vessel operators to be aware of navigation rules regarding light displays, especially when moored or at anchor, to maintain safe distances with other vessels.