S.D. Codified Laws § 32-12A-6 (2026)
No person may drive a commercial motor vehicle on the highways of this state unless the person holds and has in immediate possession a commercial learner's permit or commercial driver license with applicable endorsements valid for the vehicle the person is driving. A violation of this section is a Class 2 misdemeanor.
Source: SL 1989, ch 267 , § 5; SL 1997, ch 190 , § 1; SDCL § 32-12-82; SL 2001, ch 171 , §§ 76, 115; SL 2015, ch 168 , § 5.