N.Y. Vehicle & Traffic Law § 114-d: Electric personal assistive mobility device

§ 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.