S.D. Codified Laws § 23-3-43.1
Any candidate for election to the office of county sheriff shall file with the county auditor by the last Tuesday of March of the election year a certification of qualification issued by the law enforcement officers standards commission that the candidate meets the qualifications provided in § 23-3-43. However, any candidate appointed to fill a vacancy by a party central committee pursuant to § 12-6-56 shall file with the county auditor a certification of qualification by the second Tuesday in August. Any candidate who files an independent nominating petition shall file with the county auditor a certification of qualification by the first Tuesday after the first Monday of June. A sheriff appointed to fill a vacancy by the county commission shall file with the county auditor a certification of qualification within thirty days of the appointment. Failure to file a certification shall prevent the candidate's name from being placed on the ballot.
SDCL 23-3-43.1