Although there are no Massachusetts state regulations for naturally occurring radon, the state recommends to the public the Environmental Protection Agency (EPA) guidelines for taking action. Visit the Massachusetts website for details.
Become a Certified Radon Tester by taking InterNACHI’s free, online “Advanced Radon Measurement Service Provide Course,” which is NRPP- and AARST-approved for both initial certification and Continuing Education. The course details are located at http://www.nachi.org/massachusetts-approval-internachi-education.htm