Overview
To be operated on public roads, motor scooters in Pennsylvania must be titled, registered, and insured as defined by the Vehicle Code. They also need to meet the state's equipment and inspection rules for motorbikes.
Many scooters lack the needed equipment. This includes fenders, turn signals, and lights. They need these to pass inspection.
If you're buying a motor scooter for travel, check for a certification label. It should show the scooter meets Federal Motor Vehicle Safety Standards for motorcycles. Also, this label must be near the steering post. Also, the label should be easy to read. You should be able to read it without moving any parts, except the steering column. Scooters without this label aren't meant for highways and should not be used on them.
A motor scooter must pass inspections. It must also be powerful enough to keep up with traffic. Otherwise, it might not be suitable for all roads. Under the Pennsylvania Vehicle Code [Section 3364], vehicles must not impede traffic flow. They may only do so when safety or a law requires slower speeds. So, scooter owners should check with local police before planning to travel.
For more information, review the Moped, Motor-Driven Cycle and Motorcycle Fact Sheet (PDF).