Short answer
NRPP is the National Radon Proficiency Program, one of the two national programs in the United States that certify radon measurement and mitigation professionals.
What NRPP means
The program says it is recognized by EPA and accredited by the ANSI National Accreditation Board, and that it requires all certified individuals to conduct business in accordance with the applicable standards.
Certification does not last by itself. NRPP says a certification must be renewed every two years.
The training hours behind each NRPP certification
NRPP lists an initial course for each certification. The last row adds two of them.
| Certification | Initial course, hours |
|---|---|
| Radon Measurement Field Technician | 12, the minimum |
| Radon Measurement Professional | 16 |
| Radon Mitigation Installer | 20, the minimum |
| Radon Mitigation Specialist | 24 |
| Measurement Professional and Mitigation Specialist together | 40 |
What it means for your home
When a tester or mitigator says they are certified, ask which program and which certification: measurement and
A national certificate may not be the whole requirement. NRPP itself says to contact your state health department about state certification or licensing.
Where to go next
- Find a certified radon professional. Search testers and mitigators by state and town.
- Radon certification: the programs and how to get certified. NRPP,
and state licences, side by side.