26 | September 2024 CERTIFICATION NEWS In the United States, 20 states have laws or regulations in place that require some form of proficiency qualifications for professionals doing radon work in the marketplace. • Ten states require that radon work be performed by persons who have earned certification from an EPArecognized private proficiency program (currently the National Radon Proficiency Program or National Radon Safety Board). Seven of the ten regulationthrough-certification states also require a stateissued credential (license or certification). • Ten states operate state-based licensing or certification systems, through which state regulations define state-specific terms and conditions under which individuals will secure, renew, and retain radon credentials. Most of these states require new applicants to pass the NRPP or NRSB exam. The absence of proficiency requirements in the other 30 states allows unqualified personnel and fly-by-night contractors to conduct radon-related services and disregard standards without any accountability, and interferes with creating capacity to comply with national lending policy certification requirements. IEA’s model state “Regulation through Certification” (RtC) legislation provides the critical components needed in a statute to save lives, leverage private proficiency infrastructure, optimize any state regulatory burden, and ensure a level playing field for professionals who are willing to adhere to current standards within a framework of accountability. Legislators and other advocates in MD MO NY TN and WI are working to enact RtC laws. Adherence to standards is central to effective performance of radon measurement and soil gas mitigation, whether the individual is certified by a proficiency program (currently EPA-recognized - National Radon Proficiency Program or National Radon Safety Board) or works under a state license or certification. ANSI-AARST measurement and mitigation standards focus on essential uniform practices that deliver the greatest protection to building occupants, to facilitate the reliability of measurement and resilience of mitigation. Fourteen states require that radon professionals adhere to current EPA-recognized ANSI-AARST standards. Two states reference a blend of ANSI-AARST standards and other standards. Four states rely on older standards. Credentials and Standards Credentials and Standards in Effect in the Regulated States State Required Credential(s) Measurement / Mitigation Standard(s) Private Certification* State License/ Certification ANSI/AARST** EPA, ASTM, other California X All Colorado X X All Connecticut Mitigation Mitigation All (Mitigation) Florida X (update pending) All Illinois X All*** Indiana X X All Iowa X Measurement Mitigation Kansas X All Kentucky X X All Maine X All Minnesota X All Nebraska X All New Hampshire Mitigation All (Mitigation) New Jersey X All Ohio X All*** Pennsylvania X Multifamily Single Family Rhode Island X X All Utah Mitigation Mitigation All (Mitigation) Virginia X All West Virginia X X All *National Radon Proficiency Program or National Radon Safety Board ** American National Standards Institute/American Association of Radon Scientists and Technologists ***State regulation explicitly requires 100% ground contact testing in multifamily buildings
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