South Dakota Codified Laws
Chapter 08A - Optional Form Of County Government
Section 7-8A-8 - Effect of adoption or discontinuance.

7-8A-8. Effect of adoption or discontinuance.
The adoption or the discontinuance of an optional form of county government, as provided in this chapter, does not affect any act or contract affirmed or ratified.

Source: SL 1986, ch 62, ยง8.