What lights does a boat need at night?

What lights should be on when boating at night?

The required lights are: Red and green sidelights visible from a distance of at least two miles away—or if less than 39.4 feet (12 meters) long, at least one mile away—on a dark, clear night. An all-round white light (if vessel is less than 39.4 feet long) or both a masthead light and a sternlight.

Can I have lights on my boat at night?

You are legally responsible for displaying lights of the proper color, intensity, location and visibility on your boat. You are required to display the appropriate lights at night or during times of reduced visibility.

When boating at night what does a single white light tell you?

Powerboat A: When only a white light is visible, you may be overtaking another vessel. Give way to either side.

What does a blue light on a boat mean?

(a) Law enforcement vessels may display a flashing blue light when engaged in direct law enforcement or public safety activities. This light must be located so that it does not interfere with the visibility of the vessel’s navigation lights.

Why do boats use red lights at night?

Red light, night light. The human eye is less sensitive to longer wavelengths, so red light is chosen to preserve the night vision of the crew while still allowing them to still see their instrument panels.

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Are light bars illegal on boats?

An overtaking vessel will see a white light only. They are the give way vessel if you are underway as well as if you are at anchor. … Light bars should never be used while navigating.