The National Radon Proficiency Program certifies individuals who measure radon and individuals who install radon reduction systems. NRPP is the credentialing arm of the Indoor Environments Association, the professional membership association formerly known as AARST.
People often ask whether they are NRPP certified or AARST certified. You are NRPP certified. IEA, formerly AARST, is the membership association. It develops the industry standards, advances public policy and communicates radon risk to the public. NRPP is the part of IEA that issues and maintains the credentials. IEA membership is not required in order to be certified and there is no member discount on certification fees.
NRPP certification and state licensing are separate. Some states require a license to measure or mitigate radon commercially, some recognize NRPP certification as part of their licensing requirement, and some do not license radon work at all. Holding an NRPP credential does not grant a state license automatically. Your state radon office is the authority on what applies where you work.
Certification decisions can be appealed. Appeals are considered by the Certification Management Committee, which meets monthly. The appeal form, the grounds and the timelines are published on the appeals page [confirm appeals page link]. Complaints about the conduct or the workmanship of a certified professional are handled separately through the complaints process.
NRPP is a small team. Staff answer email and voicemail within three to five business days. Most routine questions are answered somewhere on this site or inside your certification account, so it is usually quicker to look there first, particularly if you need the answer today.
Mailing address: [confirm mailing address]. Main telephone: [confirm phone number].