Versions of See prior versions of a law on LawServer 2023 South Dakota Codified Laws 3-13C-10. Class D members vested–Contributions not required–Participation ceases 2022 South Dakota Codified Laws 3-13C-10. Class D members vested–Contributions not required–Participation ceases 2021 South Dakota Codified Laws 3-13C-10. Class D members vested–Contributions not required–Participation ceases 2019 South Dakota Codified Laws 3-13C-10. Class D members vested–Contributions not required–Participation ceases