Oregon Revised Statutes Oregon Vehicle Code § 816.100

(1) Brake lights shall be placed on the rear of the vehicle. Where more than one brake light is required under ORS 816.320 and 816.330 at least one brake light shall be placed on each side of the rear.

(2) Brake lights shall be constructed and located on a vehicle so as to give a signal of intention to stop.

(3) Brake lights shall emit a red light. If the motor vehicle was manufactured before 1959 and the brake light is combined with the taillight in a taillight assembly, the assembly may contain an insert as described under ORS 816.080.

(4) Except as provided in subsection (11) of this section, brake lights shall emit a steady burning light.

(5) Brake lights shall emit a light that is plainly visible and capable of being seen and distinguished from a distance of 500 feet to the rear of the vehicle in normal daylight.

(6) Brake lights required under ORS 816.320 and 816.330 shall be mounted, so far as practicable, in such a manner as to reduce the hazard of being obscured by mud or dust thrown by the wheels.

(7) Brake lights shall not project a glaring or dazzling light.

(8) Brake lights may be incorporated with a taillight.

(9) Brake lights shall be activated upon application of the service brake.

(10) Brake lights required under ORS 816.320 and 816.330 or any parts for brake lights must comply with standards adopted by the Department of Transportation under ORS 816.010.

(11) Brake lights for motorcycles may flash intermittently, provided that the brake lights do not override the rear turn signal function.