Colorado Association of REALTORS | DORA Now Regulating Radon Professionals
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DORA Now Regulating Radon Professionals

Jun 29 2022

DORA Now Regulating Radon Professionals

Beginning July 1, radon testing professionals will need to be licensed by the Colorado Department of Regulatory Agencies. This recent law came from HB 21-1195 and will have two different licensing programs: one for measurement and another for mitigation. DORA Spokespeople state that the increase in radon levels in Colorado homes created a market for “unqualified individuals who are representing themselves and practicing as radon professionals.” Radon is a naturally occurring gas and is the second leading cause of lung cancer in the U.S. There were 500 deaths because of it in Colorado last year. Radon testing is an important part of the home inspection process.

Application details and qualifications:


There is now a list of licensed radon professionals available to REALTORS® and your clients at Use the “Search a License” feature to find a licensed professional. The listings will include any disciplinary actions taken against a radon measurement or mitigation professional.

For even more information, feel free to use this informational booklet, which is also available in Spanish.

Search Tool:

Informational Booklet in English:

Informational Booklet in Spanish:

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