S.D. Codified Laws § 5-18A-31
Information regarding preferences to be provided
Prior to the award of a contract, the purchasing agency may require of each bidder or offeror such information as shall allow the agency to determine whether a bidder or offeror is entitled to a preference or subject to having a preference enforced against it under this chapter and chapters 5-18B , 5-18C , and 5-18D .
Source: SL 2010, ch 31, § 34.