S.D. Codified Laws § 34-47-2
If the voters of both the rural fire protection district and ambulance district approve a consolidation pursuant to § 34-47-1, the districts shall be consolidated into an emergency services district on the following January first. After the voters of each district approve the consolidation and before the consolidation takes effect, the voters of both districts shall meet together and elect a five-member board of emergency services. Board members shall serve until their successors are elected and qualified. Three members of the first board shall serve two-year terms and two members shall serve one-year terms, to be determined by lot at the first board meeting. Subsequent members of the board shall be elected by the voters at the annual meeting to serve two-year terms. Unless otherwise specified, an emergency services district board member election shall be conducted pursuant to chapter 8-3. At its first meeting each year the board shall elect a president, vice president, and secretary-treasurer.
SDCL 34-47-2