Separate numbering of different types of vehicles

Commercial motor vehicles, noncommercial motor vehicles, trailers and semitrailers, motorcycles, and snowmobiles are distinct classes of motor vehicles, and each shall be numbered in separate series. Each series shall carry a distinctive letter selected by the department. Source: SDC 1939, § 44.0105; SL 1943, ch 156, § 1; SL 1949, ch 162, § 1; SL 1955, ch 155; SL 1977, ch 249, § 13; SL 1978, ch 224, § 2; SL 1989, ch 257, § 98.