Vehicles means all railcars, cars, trucks, trailers, construction and earth moving equipment and other vehicles covered by a certificate of title law of any state and all tires and other appurtenances to any of the foregoing.
Motorized bicycle or "moped" means any vehicle that either has two tandem wheels or one wheel in the front and two wheels in the rear, that may be pedaled, and that is equipped with a helper motor of not more than fifty cubic centimeters piston displacement that produces no more than one brake horsepower and is capable of propelling the vehicle at a speed of no greater than twenty miles per hour on a level surface. "Motorized bicycle" or "moped" does not include an electric bicycle.
off-road vehicle means any vehicle while it is being operated on a road not maintained by a federal, provincial, state, or local agency, not including entrance or departure ways to private property, or any vehicle which cannot be licensed to drive on a public road and is designed and manufactured primarily for off-road usage.