Georgia does not certify or regulate radon measurement testers or radon mitigation contractors (as of Sep 2014). The Georgia Radon Hotline, operated by the University of Georgia’s Cooperative Extension Radon Education Program, recommends to the public hiring a certified radon mitigation contractor. Visit the Georgia website for details.
InterNACHI’s free, online “Advanced Radon Measurement Service Provide Course” is NRPP- and AARST-approved for both initial certification and Continuing Education, and located is at http://www.nachi.org/radon-measurement-service-provider-online-course.htm
Everything a home inspector in Georgia needs for success is at http://www.nachi.org/georgia