2007 ORS § 801.259¹
"Electric personal assistive mobility device"

"Electric personal assistive mobility device" means a device that:

(1) Is self-balancing on two nontandem wheels;

(2) Is designed to transport one person in a standing position;

(3) Has an electric propulsion system; and

(4) Has a maximum speed of 15 miles per hour. [2003 c.341 §2]