Under Pennsylvania law, which occupants of a vehicle must wear seat belts or suitable child restraints?

Explanation

Under Pennsylvania law, all front-seat occupants including the driver and all rear-seat passengers who are under 18 years of age must wear seat belts or suitable child restraints. Children 12 and under should ride buckled up in the rear seat. However, even rear-seat passengers who are at least 18 years of age should wear seat belts. Seat belts have been proven to save lives and reduce injuries ? even in the rear seat. If you are under 18 years of age, you may only carry as many passengers as seat belts in your vehicle.