S.D. Codified Laws § 25-8-5
Current with legislation signed by the governor on or before 3/6/2024
The custodian may recover support for a period of three years before the date of application with any Title IV-D agency, the date of filing with a court of competent jurisdiction, or the date of a written demand served personally or by registered or certified mail, return receipt requested, upon the noncustodial parent at the noncustodial parent's last known address, whichever occurs earlier.
SDCL 25-8-5