When one vehicle is being towed by another, they shall be coupled by a line so that the two (2) vehicles will be separated by not more than fifteen (15) feet, and there shall be displayed on the towline, a white cloth or paper, so that the same will be clearly visible to the other users of the street. During the time lights are required, the required lights shall be displayed by both vehicles.

(Code 1964, § 12.1140)