Maryland Transportation Section 11-134.4

      (a)      "Motor scooter" means a nonpedal vehicle that:

            (1)      Has a seat for the operator;

            (2)      Has two wheels, of which one is 10 inches or more in diameter;

            (3)      Has a step-through chassis;

            (4)      Has a motor:

                  (i)      With a rating of 2.7 brake horsepower or less; or

                  (ii)      If the motor is an internal combustion engine, with a capacity of 50 cubic centimeters piston displacement or less; and

            (5)      Is equipped with an automatic transmission.

      (b)      "Motor scooter" does not include a vehicle that has been manufactured for off-road use, including a motorcycle and an all-terrain vehicle.