The owner or operator of a source may not discharge into the ambient air from a single unit of emissions an air pollutant of a density equal to or greater than that designated as 20 percent opacity, as established by the Environmental Protection Agency's Method 9 in 40 C.F.R. Part 60, Appendix A (July 1, 2018).
S.D. Admin. R. 74:36:12:01
General Authority: SDCL 34A-1-6.
Law Implemented: SDCL 34A-1-6.