Versions of South Dakota Codified Laws 7-18A-18.1. Certification regarding petition signatures by county auditor--Notice to petition sponsors on LawServer 2023 South Dakota Codified Laws 7-18A-18.1. Certification regarding petition signatures by county auditor–Notice to petition sponsors 2022 South Dakota Codified Laws 7-18A-18.1. Certification regarding petition signatures by county auditor–Notice to petition sponsors 2021 South Dakota Codified Laws 7-18A-18.1. Certification regarding petition signatures by county auditor–Notice to petition sponsors