S.D. Codified Laws § 32-26-21.2
Current with legislation signed by the governor on or before 3/6/2024
For the purposes of §§ 32-26-21.2 to 32-26-21.3, inclusive, the term, electric personal assistive device, means a self-balancing two non-tandem wheeled device, designed to transport only one person, with an electric propulsion system that limits the maximum speed of the device to fifteen miles per hour or less.
SDCL 32-26-21.2