S.D. Codified Laws § 1-26-4.6
All notices of intent to adopt emergency rules made prior to March 14, 1985, are hereby in all respects legalized and validated. If a person has a vested right in any real or personal property by reason of an error in a notice or an error in the method of giving a notice referred to in subdivision 1-26-4(2), and if no action or proceeding to enforce such right was commenced prior to July 1, 1986, such right is forever barred.
An action or proceeding brought pursuant to § 1-26-4.1 involving real property may not be brought or maintained in a court of this state unless a notice of such action, made in accordance with chapter 15-10, was recorded in the office of the register of deeds of the county in which the affected real property is located prior to July 1, 1987.
SDCL 1-26-4.6