S.D. Codified Laws § 15-26A-80
Current with legislation signed by the governor on or before 3/6/2024
If an appellant fails to file his brief within the time provided by § 15-26A-75 or within the time as extended, an appellee may move for dismissal of the appeal. If an appellee fails to timely file his brief, he will not be heard at oral argument except by permission of the court. The clerk may not accept for filing any brief not timely submitted for filing.
SDCL 15-26A-80