S.D. Codified Laws § 32-17-24.1 (2026)
A moped shall be equipped with a headlamp of a single beam type. The headlamp of the moped shall be of sufficient intensity to render clearly discernible a person or vehicle at a distance of not less than one hundred feet. A violation of this section is a petty offense.
Source: SL 1978, ch 230 , § 3; SL 1989, ch 255 , § 54.