Pennsylvania law 75 Pa.C.S. 4306 mandates that drivers use low beams when approaching oncoming vehicles within 500 feet and when approaching from behind within 300 feet. The law also permits flashing high beams as a warning and provides exemptions for emergency vehicles with specific lighting systems. Additionally, school buses are required to display lighted headlamps during operation.
You must use low beams when approaching an oncoming vehicle within 500 feet or approaching another vehicle from behind within 300 feet.
Yes, Pennsylvania law allows flashing high beams as a warning of roadway emergencies or dangerous conditions.
Yes, emergency vehicles with flashing headlamps conforming to regulations are exempt when used for emergency purposes.
Yes, all school buses must display lighted headlamps during the entire time they are in operation.