S.D. Codified Laws § 11-3-4
Every plat provided for in this chapter shall be certified by the registered land surveyor, who shall attach an official seal thereto as specified in § 36-18A-45 as being in all respects correct. The landowner, or the landowner's duly authorized agent, shall certify that the plat has been made at the request and under the direction of the landowner for the purposes indicated therein, that he or she is the owner of all the land included therein, and that development of this land shall conform to all existing applicable zoning, subdivision and erosion and sediment control regulations. The landowner certification shall be acknowledged before some officer authorized to take the acknowledgment of deeds and, with the certificate of such acknowledgment, shall be endorsed on or attached to the plat and be recorded as a part thereof in the office of the register of deeds of the proper county.
No such plat may be recorded until all the provisions of this section have been fully complied with, and upon certification and recordation shall be used as the legal description as provided by § 43-21-4 for all purposes, including constructive notice.
SDCL 11-3-4