When is a vessel operator required to use navigation lights? at all times when moored at a dock or pier when away from the dock during the day during periods of restricted visibility


A vessel operator is required to use navigation lights at all times under the listed conditions, however, the required lights vary for the different conditions listed. The various lights provide other vessel operators with important information.


When moored at dock, the operator must display a white light visible in all directions as well as when anchored outside a designated mooring area between sunset and sunrise.

During a period of restricted visibility such as fog, operator must display Red and green sidelights visible from a distance of at least two miles away

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