S.D. Codified Laws § 7-18A-12
Current with legislation signed by the governor on or before 3/6/2024
Each person who has circulated a petition shall, before filing the petition, sign an affidavit, under oath, verifying that he or she circulated the petition and that either the circulator or the signer added the signer's place of residence and date of signing. If multiple sheets of paper are necessary to obtain the required number of signatures, each sheet shall be self-contained and separately verified by the circulator.
SDCL 7-18A-12