SDCL § 2-1-18.2: Petition signature withdrawal--Challenge required.

If a challenge to a validated petition is filed pursuant to § 2-1-17.1 or 2-1-18, the secretary of state must provide to each party to the proceeding all written notifications, submitted under § 2-1-18.1, that pertain to the validated petition being challenged. If a signature is withdrawn pursuant to § 2-1-18.1, the signature is deemed withdrawn from the petition and may not be counted as valid in a challenge.