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Fig. 3: Navigation lights on manually powered vessels less than 23 feet long
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.

Manually powered vessels are boats that are paddled, poled, or rowed. If less than 23.0 feet long, these vessels should exhibit a white light visible for 360° around the horizon and visible from a distance of at least one mile away if operating on natural lakes, Corps of Engineers impoundments, border rivers, or impoundments on inland rivers. If this light is partially obscured due to the nature of the vessel, an additional white light must be on hand to be shown in sufficient time to prevent a collision.