S.D. Codified Laws § 62-1-19

Any independent contractor who is not an employer or a general contractor and is not covered under a workers' compensation insurance policy may sign an affidavit of exempt status under the South Dakota Workers' Compensation Law. Notwithstanding the provisions of § 62-3-10, the affidavit of exempt status creates a rebuttable presumption that the affiant is not an employee for the purposes of the South Dakota Workers' Compensation Act and the person possessing the affidavit is not liable for a workers' compensation claim made by the affiant or any subcontractor of the affiant.