South Dakota Mechanical / HVAC Code: UMC 2021

South Dakota follows UMC 2021 as the basis for mechanical / hvac work. Permits and inspections are issued by the local Authority Having Jurisdiction (AHJ), which may publish additional amendments.

No single statewide plumbing code; UPC is predominant. Verify with the AHJ. (Mechanical code typically derives from the plumbing-code family.)