S.D. Codified Laws § 32-5A-1.1
If a county imposes a wheel tax pursuant to § 32-5A-1 in excess of two dollars per wheel, the ordinance shall be published within ten days of the decision by the board of county commissioners. Notwithstanding the provisions of § 7-18A-5, publication shall be made at least twice in the legal newspapers designated by the board pursuant to § 7-18-3, with no fewer than five days between publication dates, before the increase takes effect. The announcement shall consist of a reproduction of the ordinance, a statement of the right to refer the decision of the board to a vote of the people as provided in chapter 7-18A, and notification that a referendum petition form, prepared by the county and ready for circulation, for such ordinance may be obtained from the office of the county auditor.
SDCL 32-5A-1.1