S.D. Codified Laws § 49-31-70

An application for a certificate of authority to provide local exchange service shall set forth with particularity the proposed geographic territory to be served and provide information regarding the types of local exchange services to be provided. Each telecommunications company holding a certificate of authority to provide local exchange service within the geographic area where an applicant is seeking to provide local exchange service shall be provided notice of the application and be granted intervenor status in any commission proceeding on the application.