South Dakota Codified Laws — Title 10 (Taxation)
SDCL § 10-25-19 — Acts constituting commencement and completion of proceedings to procure tax deed
Commencement of a proceeding as provided in §§ 10-25-16 to 10-25-18 , inclusive, means any act done or record made by or for the certificate holder indicating that a proceeding has been commenced. Completion of a proceeding used in §§ 10-25-16 to 10-25-18 , inclusive, means the completed service and filing of proof of service in the office of the treasurer which starts the running of the sixty days allowed for redemption.
Source: official text