SDCL § 12-18-6.1: Voters required to provide identification before voting.

When the voter is requesting a ballot, the voter shall present a valid form of personal identification. The personal identification that may be presented shall be either:

(1) A South Dakota driver's license or nondriver identification card;

(2) A passport or an identification card, including a picture, issued by an agency of the United States government;

(3) A tribal identification card, including a picture; or

(4) A current student identification card, including a picture, issued by a high school or an accredited institution of higher education, including a university, college, or technical school, located within the State of South Dakota.