Arizona Revised Statutes Title 28. Transportation § 28-925. Tail lamps

A. A motor vehicle, trailer, semitrailer and pole trailer and any other vehicle that is being drawn at the end of a train of vehicles shall be equipped with at least one tail lamp mounted on the rear. When lighted as required by this article, each tail lamp shall emit a red light plainly visible from a distance of five hundred feet to the rear, except that in the case of a train of vehicles, only the tail lamp on the rearmost vehicle need actually be seen from the distance specified.

B. A tail lamp on a vehicle shall be located at a height of not more than seventy-two inches nor less than fifteen inches to be measured as provided in § 28-923, subsection B.

C. Either a tail lamp or a separate lamp shall be constructed and placed in a manner that illuminates with a white light the rear license plate and renders it clearly legible from a distance of fifty feet to the rear. A tail lamp or tail lamps together with any separate lamp for illuminating the rear license plate shall be wired to provide that the tail lamp or lamps are lighted whenever the head lamps or auxiliary driving lamps are lighted.