Michigan Compiled Laws, Chapter 257. Motor Vehicles § 257.686

Sec. 686. (1) A motor vehicle, trailer, semitrailer, pole trailer, or vehicle which is being drawn in a train of vehicles shall be equipped with at least 1 rear lamp mounted on the rear, which, when lighted as required by this act, shall emit a red light plainly visible from a distance of 500 feet to the rear.

(2) Either a tail lamp or a separate lamp shall be constructed and placed so as to illuminate with a white light the rear registration plate and render it clearly legible from a distance of 50 feet to the rear. A tail lamp or tail lamps, together with any separate lamp for illuminating the rear registration plate, shall be wired so as to be lighted whenever the head lamps or auxiliary driving lamps are lighted.

(3) A motor vehicle licensed as an historic vehicle is exempt from the requirements of this section if the vehicle as originally equipped failed to meet these requirements.

(4) When operated or moved on a highway at the times specified in section 684,  1 an implement of husbandry shall meet either of the following requirements:

(5) A pickup camper shall be attached to the motor vehicle in a manner so that the registration plate of the motor vehicle is clearly visible.