§ 34.33 CONTRACTS, METHODS OF AWARDING.

   Unless otherwise authorized by law, each contract for supplies, services, and construction shall be awarded by one of the following methods:

   (A)   Competitive sealed bids as provided in SDCL § 5-18A-5;

   (B)   Competitive sealed proposals as provided in SDCL §§ 5-18A-6 and 5-18A-7;

   (C)   Small purchases as provided in SDCL § 5-18A-11;

   (D)   Sole source procurement as provided in SDCL § 5-18A-8; or

   (E)   Emergency procurement as provided in SDCL § 5-18A-9.

(SDCL §  5-18A-3)