Radon Testing CompaniesSouth Dakota file — NRPP / NRSB
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Chapter 04 — The South Dakota file

Radon testing & mitigation in South Dakota

This site imports no South Dakota state roster, so these are current NRPP and NRSB certifications from those programs’ public finders. A national certification is not a state license. We group people by the city on that file. We do not invent neighborhoods. Source: NRPP.

Latest credential check October 13, 2026. Methodology Individual record dates may be earlier.

17current listings
9testing
8mitigation
Fig. 4 — 17 of 17 current listings are mapped. Each pin is a current listing at the Census city or county centroid on the file, approximate. Pins that share a place are spread so you can click them. Not street addresses.

§ 4.1

Cities with listings

A city appears only when at least one current listing serves it.

§ 4.3

How to verify a radon credential in South Dakota

We have not confirmed whether South Dakota requires a state radon credential. Treat this as unknown, not as "none required", and ask the South Dakota radon program. Listings here are current NRPP or NRSB certifications, which are national and are not a state license.

NRPP finder · NRSB finder · EPA guidance · All fifty states · reviewed September 8, 2026

§ 4.4

Questions about radon credentials in South Dakota

Does South Dakota license radon testers and mitigators?

We have not confirmed whether South Dakota requires a state radon credential. That means unknown, not that none is required. We do not guess at state law, so this site publishes no answer it has not checked. Ask the South Dakota radon program.

How do I verify a radon credential in South Dakota?

The 17 listings shown here are current NRPP or NRSB certifications, verifiable on those programs' public finders. The latest record check was October 13, 2026; check each listing for its own date. If South Dakota also requires a state credential, ask the provider for it and check it with the state agency.

Is an NRPP or NRSB certification enough in South Dakota?

We cannot say for South Dakota, because we have not confirmed whether the state requires its own credential. A national certification is never a state license anywhere. Treat NRPP or NRSB as evidence of training, then ask the state radon program what else is required.