What lights must a vessel engaged in fishing display at night when underway or at anchor?

A vessel engaged in fishing at night, whether underway or at anchor, is required to display specific lights for safety and identification purposes. The correct lighting configuration for such a vessel consists of red over white lights. This configuration indicates that the vessel is engaged in fishing, distinguishing it from other types of vessels and ensuring that other mariners are aware of its status and activities.

The red light signifies that the vessel is engaged in fishing, while the white light serves as a secondary indicator, enhancing visibility. This is important for safe navigation, especially in crowded waters, as it helps prevent collisions with other vessels. The distinct combination of red over white is a standard used internationally and helps maintain consistency in maritime practices.

Therefore, displaying red over white lights is essential for vessels engaged in fishing to clearly indicate their activity to other vessels in the vicinity.