SDCL § 5-18A-43: Terms prohibited in construction contracts.

Subject to the provisions of § 5-18A-45, no governmental unit awarding a contract after July 1, 2014, for the construction, repair, remodel, or demolition of a facility and no construction manager acting on behalf of the governmental unit may include any of the following in a bid specification, project agreement, or other controlling document:

(1) A term that requires or prohibits a bidder, offeror, contractor, or subcontractor from entering into or adhering to an agreement with one or more labor organizations in regard to that project or a related construction project; or

(2) A term that otherwise discriminates against a bidder, offeror, contractor, or subcontractor for becoming, remaining, or refusing to become or remain a signatory to, or for adhering or refusing to adhere to, an agreement with one or more labor organizations in regard to that project or a related construction project.