S.D. Codified Laws § 61-6-34
No benefits may be paid on the basis of services performed by an alien unless the alien is an individual who was lawfully admitted for permanent residence at the time the services were performed, was lawfully present for purposes of performing the services, or was permanently residing in the United States under color of law at the time the service was performed, including an alien who is lawfully present in the United States as a result of the application of the provisions of section 203(a)(7) or section 212(d)(5) of the Immigration and Nationality Act as amended as of January 1, 1990. Any data or information required of individuals applying for benefits to determine whether benefits are not payable to them because of their alien status shall be uniformly required from all applicants for benefits. In the case of an individual whose application for benefits would otherwise be approved, no determination that benefits to the individual are not payable because of the individual's alien status may be made except upon a preponderance of the evidence.
SDCL 61-6-34