S.D. Codified Laws § 32-26-26 (2026)
The driver of any vehicle overtaking another vehicle proceeding in the same direction shall pass at a safe distance to the left thereof. The driver of an overtaking vehicle shall pass at a safe distance to the side of an overtaken vehicle and may not cut in front of the latter until safely clear of the overtaken vehicle. A violation of this section is a Class 2 misdemeanor.
Source: SDC 1939, § 44.0312; SL 1966, ch 131 ; SL 1968, ch 172 ; SL 1989, ch 255 , § 166.