S.D. Codified Laws § 32-20-2
No person may operate a motorcycle, except a moped as defined in § 32-20-1, a licensed all-terrain vehicle under § 32-20-13, or any motor vehicle that has three wheels and is operated with a steering wheel and foot controls on the public streets or highways without a motor vehicle driver license or permit upon which a state testing officer has certified that such person is qualified to operate such motorcycle. An operator of a moped, a licensed all-terrain vehicle, or a motor vehicle that has three wheels and is operated with a steering wheel and foot controls shall have a valid motor vehicle driver license or permit. The department may waive the testing requirements upon completion of a motorcycle safety course approved pursuant to § 32-20-14. A violation of this section is a Class 2 misdemeanor.
SDCL 32-20-2