South Dakota Codified Laws — Title 10 (Taxation)
SDCL § 10-39-49 — Promulgation of rules
The secretary of revenue may, pursuant to chapter 1-26 , promulgate rules concerning:
(1) The procedures for filing a tax return and payment of the tax;
(2) The definition of deductible costs; and
(3) Determining the application of the tax and exemptions.
Source: official text