§ 114-d. Electric personal assistive mobility device. Every
self-balancing, two non-tandem wheeled device designed to transport one
person by means of an electric propulsion system with an average output
of not more than seven hundred fifty watts (one horsepower), and the
maximum speed of which on a paved level surface, when propelled solely
by its electric propulsion system while ridden by an operator weighing
one hundred seventy pounds, is less than twelve and one-half miles per
hour.