New Hamphire accepts InterNACHI's free radon course for radon tester certification

The New Hampshire Department of Environmental Services (NHDES) Radon Program recommends using nationally certified radon-in-air measurement and mitigation professionals. Visit the New Hamphire website for details.

InterNACHI’s free, online “Advanced Radon Measurement Service Provide Course” is NRPP- and AARST-approved.

For details, visit