S.D. Codified Laws § 10-1-15
The secretary of revenue shall exercise general supervision over the administration of the assessment and tax laws of the state, over all boards of review and equalization, and all other assessing officers in the performance of their duties. The secretary of revenue shall provide that all assessments of property are made relatively just and equal in compliance with the laws of this state. The secretary of revenue shall prepare suitable forms for the listing of property and shall arrange and classify the items of all property in such groups and classes, and from time to time may change and separate or consolidate the groups or classes as necessary to secure more accurate and perfect listing and valuation of all property of the state. The secretary shall require all assessing and taxing officers to use blanks, forms, and books corresponding and conforming in size, form, and arrangement to those prescribed by the secretary of revenue.
SDCL 10-1-15