8-1720.Lamps and lights on authorized emergency vehicles; alternately or simultaneously flashing head lamps. (a) Except as provided in subsection (b), every authorized emergency vehicle, in addition to any other equipment required by this act, shall be equipped with signal lamps mounted as high and as widely spaced laterally as practicable, which shall be capable of displaying to the front two alternately flashing red lights located at the same level and to the rear two alternately flashing r...
