S.D. Codified Laws § 49-28-71

Notwithstanding any other law, no provision of a motor carrier transportation contract, and no covenant or agreement collateral to or affecting a motor carrier transportation contract, may require the motor carrier to indemnify, hold harmless, or defend the promisee or affiliate, or have the effect of indemnifying, holding harmless, or defending the promisee or affiliate from or against any liability for loss or damage resulting from the negligence, intentional acts, or omissions of the promisee or affiliate. Any provision of any contract or agreement entered into after July 1, 2012 that violates this section is void and unenforceable.