Delaware Code
Subchapter II. Lights
§ 4334. Tail lamps.

(a) Every motor vehicle, trailer, semitrailer and pole trailer and any other vehicle which is being drawn at the end of a train of vehicles shall be equipped with at least 1 tail lamp, mounted on the rear, which, when lighted as hereinbefore required, shall emit a red light plainly visible from a distance of 500 feet to the rear, provided, 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. Provided, however, that every such above mentioned vehicle, other than a truck tractor, registered in this State and manufactured or assembled after July 1, 1956, shall be equipped with at least 2 tail lamps mounted on the rear, which, when lighted as herein required, shall comply with this section.
(b) Every tail lamp upon every vehicle shall be located at a height of not more than 72 inches nor less than 20 inches.
(c) Either a tail lamp or a separate lamp shall be so constructed and placed 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. Any tail lamp or tail lamps, together with any separate lamp for illuminating the rear registration plate, shall be so wired as to be lighted whenever the head lamps or auxiliary driving lamps are lighted.

Structure Delaware Code