S.D. Codified Laws § 21-22-7
At any time after the filing of the papers required by §§ 21-22-3 and 21-22-4 a fiduciary, the trustor, or any beneficiary under such court trust, if the fiduciary, trustor, or beneficiary considers court supervision unnecessary or impractical and involving unnecessary burden and expense, may petition the court to dispense with the supervision. Upon the petition being filed, the court shall fix the time and place for hearing, unless the conditions of § 21-22-21 have been met, and cause notice thereof to be given as provided pursuant to this chapter. Upon the hearing the supervision may not be dispensed with if any fiduciary, trustor, or any beneficiary with a substantial interest in the trust objects to dispensing therewith. If there is no objection and the court is satisfied that supervision is impractical or unnecessary and would involve unnecessary burden and expense, an order may be entered dispensing with the supervision.
SDCL 21-22-7