Maryland Transportation Section 11-134.1

      "Moped" means a bicycle that:

            (1)      Is designed to be operated by human power with the assistance of a motor;

            (2)      Is equipped with pedals that mechanically drive the rear wheel or wheels;

            (3)      Has two or three wheels, of which one is more than 14 inches in diameter; and

            (4)      Has a motor with a rating of 1.5 brake horsepower or less and, if the motor is an internal combustion engine, a capacity of 50 cubic centimeters piston displacement or less.