Chapter 4: The Legal Requirements of Boating
Navigation Lights

Vessel operators must make sure that their vessels are equipped with the proper navigation lights and use the lights during these conditions:

• When away from the dock between sunset and sunrise
• During periods of restricted visibility such as fog or heavy rain

The different types of navigation lights are described in Navigation Lights in Chapter 3. No other lights that may be mistaken for required navigation lights may be exhibited. Note: Blue or red flashing lights are restricted to use by law enforcement vessels only.

The required navigation lights differ depending on the type and size of your vessel.

All Vessels When Not Underway

All vessels are required to display a white light visible from all directions whenever they are moored or anchored away from dock between sunset and sunrise.

Figure 1: Power-Driven Vessels Less Than 15 Horsepower

Figure 2: Power-Driven Vessels 15 Horsepower or Greater

Figure 3: Sailboat Under Sail More Than 22 Ft. Long
	An alternative to the sidelights and sternlight is a combination red, green, and white light, which must be exhibited near the top of the mast.

Figure 4: Unpowered Vessels 22 Ft. Long or Less

To prevent a collision, vessel operators should never leave shore without a flashlight. Even if you plan to return before dark, unforeseen developments might delay your return past nightfall.