S.D. Codified Laws § 9-32-22 (2026)
If a part of §§ 9-32-14 to 9-32-21, inclusive, is invalid, all valid parts that are severable from the invalid part remain in effect. If a part of said sections is invalid in one or more of its applications, the part remains in effect in all valid applications that are severable from the invalid applications.
Source: SL 1971, ch 71 , § 9.