S.D. Codified Laws § 1-19A-22

If the State Historical Society Board of Trustees determines that the owner of any property given a tax moratorium pursuant to § 1-19A-20 has failed to maintain such property, the board may, after a public hearing, cancel the tax moratorium on such property. If the board cancels a tax moratorium pursuant to this section, the board shall notify the director of equalization and the treasurer of the county where such property is located of such cancellation.