S.D. Codified Laws § 32-23-19
A law enforcement officer shall serve the notice of intent to revoke, on behalf of the Department of Public Safety and shall take possession of any driver's license issued by this state held by the person if the arrested driver refuses to submit to a chemical analysis as directed by the officer pursuant to § 32-23-10. A copy of the completed notice of intent to revoke form, and any South Dakota driver's license taken into possession shall be forwarded to the department by the officer. If a valid South Dakota driver's license is surrendered, the notice of intent to revoke shall function as a temporary license which is valid for one hundred twenty days. Upon receipt of a petition for a hearing, the department may extend the temporary license thirty days following the scheduled date of the hearing.
SDCL 32-23-19