§ 301.081 ELECTRIC PERSONAL ASSISTIVE MOBILITY DEVICE.
   ELECTRIC PERSONAL ASSISTIVE MOBILITY DEVICE or EPAMD. A self-balancing, two nontandem-wheeled device, designed to transport only one person, with an electric propulsion system with average power of 750 watts (one horse power), whose maximum speed on a paved level surface, when powered solely by such a propulsion system while ridden by an operator who weighs 170 pounds, is less than 20 mph.
(W. Va. Code 17C-1-66)