Road signs in Puerto Rico

Road signs in Puerto Rico are regulated in the Manual de Rotulación para las Vías Públicas de Puerto Rico, Puerto Rico’s supplement to the Manual on Uniform Traffic Control Devices (MUTCD), the standard for road signs, signals, and markings in the United States. It is developed by the Puerto Rico Highways and Transportation Authority (PRHTA) "in substantial conformance to" the national MUTCD developed by the Federal Highway Administration.

Source: Wikipedia — Road signs in Puerto Rico (CC BY-SA 4.0)