S.D. Codified Laws § 32-12A-60 (2026)
Any person is disqualified from driving a commercial motor vehicle for a period of one hundred twenty days if convicted during any three-year period, while driving a commercial motor vehicle, of a second conviction or any combination of convictions of § 32-29-4, 32-29-5, 32-29-7, 32-29-8, 32-29-9, or 32-29-12 in separate incidents.
Source: SL 2002, ch 156 , § 2; SL 2007, ch 182 , § 16; SL 2013, ch 149 , § 4.