46 C.F.R. § 161.013-3 General performance requirements.
Title 46 - Shipping
(a) Each electric light must: (1) Emit a white light which meets the intensity requirements of §161.013–5; (2) Be capable of automatic signaling in a manner which meets the requirements of §161.013–7; (3) Contain an independent power source which meets the requirements of §161.013–9; (4) Float in fresh water with the lens surface at or above the surface of the water; (5) Be equipped with a waterproof switch; and (6) Meet the requirement of paragraphs (a) (1) through (4) of this section after floating for at least 72 hours followed by submersion in 5% by weight sodium chloride solution for at least 2 hours. (b) The electric light may not be equipped with a switch mechanism which permits continuous display of a beam of light except that the light may be equipped with a switch which returns to the off position when pressure is released.
Title 46: Shipping
PART 161—ELECTRICAL EQUIPMENT
Subpart 161.013—Electric Distress Light for Boats
§ 161.013-3 General performance requirements.
