South Dakota Laws > Title 45 > Chapter 6B > § 45-6B-99 South Dakota Codified Laws 45-6B-99. Exclusion of underground mining operations Current as of: 2023 | Check for updates | Other versions Presently operating or new underground mining operations are not subject to the provisions of §§ 45-6B-94 to 45-6B-99, inclusive. Source: Initiated Measure No. 2, approved November 3, 1992, effective November 19, 1992; SL 2011, ch 165, § 210. Previous sectionNext section Chapter 6B Contents