South Dakota Laws > Title 40 > Chapter 32 > § 40-32-21 South Dakota Codified Laws 40-32-21. Exemption of operations otherwise regulated Current as of: 2023 | Check for updates | Other versions Any part of a milk plant’s operations subject to Grade A regulations as set forth in chapter 39-6 or in chapter 39-8, is exempt from all provisions of this chapter except the licensing provisions. Source: SL 1957, ch 92, § 1; SDC Supp 1960, § 4.1901. Previous sectionNext section Chapter 32 Contents