Radon Testing CompaniesOregon file — NRPP / NRSB
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Chapter 04 — The Oregon file

Radon testing & mitigation in Oregon

This site imports no Oregon 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 September 14, 2026. Methodology Individual record dates may be earlier.

55current listings
40testing
16mitigation
Fig. 4 — 55 of 55 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 Oregon

We have not established a Oregon radon credential. OR OHA says: "The State of Oregon does not certify radon professionals." (read 2026-09-08). We publish that as their statement rather than as our own finding, because a programme can be created at any session and this page is checked monthly, not daily. Listings here are current NRPP or NRSB certifications, which are national and are not a state license.

What Oregon says · NRPP finder · NRSB finder · All fifty states · reviewed September 8, 2026

§ 4.4

Questions about radon credentials in Oregon

Does Oregon license radon testers and mitigators?

We have not established a Oregon radon credential. The state's own radon page says: "The State of Oregon does not certify radon professionals." We read that on September 8, 2026 and publish it as their statement rather than as our finding, because a requirement can be created at any legislative session. Ask the Oregon radon program if you need today's position.

How do I verify a radon credential in Oregon?

The 55 listings shown here are current NRPP or NRSB certifications, verifiable on those programs' public finders. The latest record check was September 14, 2026; check each listing for its own date. If Oregon does require something we have not found, the agency is the place that will know.

Is an NRPP or NRSB certification enough in Oregon?

A national certification is never a state license anywhere. For Oregon we have not established that a state credential exists, and the state's radon page says otherwise in the words quoted above. Treat NRPP or NRSB as evidence of training, and ask the Oregon radon program what else applies.