P.R. Laws tit. 9, § 5019
Every license plate shall bear on its surface, the license number assigned to the motor vehicle, trailer or semi-trailer, as provided in this chapter. The Secretary is hereby authorized to determine by regulations, the design, size, color, composition and other physical details of the license plates, as well as the number of license plates that the different vehicles will use.
The license plates shall be fixed horizontally and visibly on the back of every motor vehicle, trailer or semi-trailer, including motorcycles, and shall be lighted at night by a colorless light placed for that purpose on the vehicle, that will allow the license number to be seen even when the vehicle is in motion.
History —Jan. 7, 2000, No. 22, § 2.18; June 3, 2004, No. 132, § 2; Aug. 19, 2005, No. 57, § 2.