S.D. Codified Laws § 32-20-13
Any all-terrain vehicle with four or more wheels and with a combustion engine having a piston or rotor displacement of two hundred cubic centimeters or more or any off-road vehicle with two wheels and with a combustion engine having a piston or rotor displacement of one hundred twenty cubic centimeters or more or any all-terrain vehicle, with four or more wheels, propelled by an electric motor that draws power from a battery that is capable of being recharged may be licensed as a motorcycle pursuant to chapter 32-5 to be used on a public highway.
Prior to being licensed, the vehicle shall meet the necessary light, brake, and other vehicle accessory requirements provided by chapters 32-15, 32-17, and 32-18 that are applicable to motorcycles.
This section does not apply to a golf cart, as defined in § 32-14-13, a low-speed vehicle, as described in § 32-3-71, or a toy or youth off-road vehicle.
Any vehicle licensed pursuant to this section may not be operated on the interstate highway system. A person who operates any vehicle licensed pursuant to this section on the interstate highway system is guilty of a Class 2 misdemeanor.
SDCL 32-20-13