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The State of Connecticut (CT) is required to maintain lists of qualified radon professionals. Professionals may be nationally certified through either NRPP or NRSB. Continuing education credits are required to maintain their certification with NRPP or NRSB. 

For steps on how to become listed as a nationally certified radon measurement or mitigation professional in CT please visit: Radon Professionals 

• Radon measurement professionals must be nationally certified to be listed as a qualified measurement professional in CT. 

• Radon measurement professionals seeking to be listed as qualified to test in CT public schools must have their national certification in measurement and to have successfully completed the Connecticut Department of Public Health (DPH) half-day Radon Measurement in Connecticut Schools course. 

• Radon mitigation specialists must be nationally certified and have a home improvement contractor (HIC) registration with the Connecticut Department of Consumer Protection (DCP) to be listed as a qualified mitigation professional in CT. Individuals who perform radon mitigation for water require a CT DCP Plumbing & Piping contractor license. A HIC registration is not required for a licensed P-1, P-3, or J-1 plumbing contractor who ONLY performs radon mitigation for water. 

For the State of Connecticut DPH’s Radon Program homepage: ct.gov/radon  

For Radon Laws in Connecticut: Connecticut Radon Laws 

2023 AARST Radon Report Card