S.D. Codified Laws § 9-13-6.1
Current with legislation signed by the governor on or before 3/6/2024
If more than one commissioner or alderman is to be elected for a like term, the governing body before October first in the year preceding the election may approve an ordinance designating that candidates shall run for a specific position such as "A" and "B" with each position representing one of the incumbent seats.
SDCL 9-13-6.1