Washington Revised Code Title 46. Motor Vehicles § 46.37.170. Lamps and reflectors on other vehicles and equipment--Slow-moving vehicle emblem on animal-drawn vehicles

(1) Every vehicle, including animal-drawn vehicles and vehicles referred to in *RCW 46.37.010(3), not specifically required by the provisions of RCW 46.37.020 through 46.37.330 to be equipped with lamps, or other lighting devices, shall at all times specified in RCW 46.37.020 be equipped with at least one lamp displaying a white light visible from a distance of not less than one thousand feet to the front of said vehicle, and shall also be equipped with two lamps displaying red light visible from a distance of not less than one thousand feet to the rear of said vehicle, or as an alternative, one lamp displaying a red light visible from a distance of not less than one thousand feet to the rear and two red reflectors visible from all distances of six hundred to one hundred feet to the rear when illuminated by the lawful lower beams of head lamps.

(2) After June 1, 1978, every animal-drawn vehicle shall at all times be equipped with a slow-moving vehicle emblem complying with RCW 46.37.160(7).