Each bid shall be made in accordance with the plans and specifications on file. Each bid in excess of fifty thousand dollars shall be accompanied by a certified check, certified by a state or national bank domiciled within this state, in the sum of five percent of the total amount of the bid, or a ten percent bid bond issued by a surety authorized to do business in the state. To be effectual for any purpose the bid and certified check or bond shall be securely enclosed in a sealed envelope and deposited with the county auditor before the hour of opening the sealed bids.

Source: SL 1919, ch 333 , § 32; SL 1920 (SS), ch 89 ; SDC 1939, § 28.1405; SL 1961, ch 142 , § 2; SL 2018, ch 168 , § 43.