Marine navigation lights are illuminated indicators that provide a visual reference for other vessel operators of the type, size, and status (underway, direction of travel, at anchor, etc.) of a vessel. Vessel operators must make sure that their vessels (ships, sailing or power-driven marine crafts) are equipped with the proper navigation lights whenever the vessels are underway or at anchor between sunset and sunrise, and also during times of restricted visibility such as fog, rain, and storm.
Navigation lights must be mounted properly on board vessels to provide the correct visual alignment, allow unimpeded sight lines, and thus help other vessel operators assess the probability of collision and take appropriate measures. The required navigation lights vary depending on the type (whether it is powered by machinery, sail, paddles or oars) and size of the vessel. Operating a vessel without the correct navigation lights during the hours of darkness or in low visibility conditions is prohibited and can incur substantial penalties.
at the Open Lighting Product Directory (OLPD)
