Chapter 04 — The Minnesota file

Radon testing & mitigation in Minnesota

Current MN MDH credentials from the official Minnesota roster. We group people by the city on that file. We do not invent neighborhoods. Source: MN MDH.

Latest credential check August 29, 2026. Methodology Individual record dates may be earlier.

367current listings
367testing
113mitigation
Fig. 4 — 319 of 367 current listings are mapped. 46 records have out-of-state mailing addresses. 2 records have an in-state place but no verified city or county coordinate. 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 Minnesota

MN MDH licenses radon work in Minnesota and publishes a list we import monthly. Match the name and credential number on the official page before you hire.

Official MN MDH verification page · All fifty states · reviewed September 8, 2026

§ 4.4

Questions about radon credentials in Minnesota

Does Minnesota license radon testers and mitigators?

MN MDH licenses radon work in Minnesota and publishes a current list with credential numbers. This site imports that list and re-checks it monthly. 367 current Minnesota listings appear here as of August 29, 2026.

How do I verify a radon credential in Minnesota?

Open the MN MDH lookup at https://radon.web.health.state.mn.us/serviceProviders.jsf, search the name, and match the credential number digit for digit. Status can change between our monthly check on August 29, 2026 and the day you hire. If the official page disagrees with this directory, the official page is right.

Is an NRPP or NRSB certification enough in Minnesota?

Minnesota issues its own radon credential through MN MDH, so a national NRPP or NRSB certification is not a substitute for it. Every Minnesota listing on this site shows the MN MDH number, not a national one.