11.48.100 - LAMPS AND OTHER EQUIPMENT ON BICYCLES (RCW 46.61.780)
A. Every bicycle when in use during the hour of darkness as defined in Section 11.72.050 (RCW 46.37.020) shall be equipped with a lamp on the front which shall emit a white light visible from a distance of at least 500' to the front and with a red reflector on the rear of a type approved by the state commission on equipment which shall be visible from all distances from 100' to 600' to the rear when directly in front of lawful lower beams of head lamps on a motor vehicle. A lamp emitting a red light visible from a distance of 500 feet to the rear may be used in addition to the red reflector.
