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Entry Level Courses for Certification in United States

Courses leading to certification in radon measurement (testing) and radon mitigation (installation of radon reduction systems).


National Radon Proficiency Program (NRPP) All CERTI courses have been approved after arduous development and review.  Because of this, state programs also accept our courses (the only exceptions are where state protocols differ from the national protocols or a preference for classroom only courses).  To verify if your state accepts our courses go to this List of State Requirements, Course Approvals, and Radon Fact Sheets 

National Radon Safety Board (NRSB) - Due to recent (3/1/18) administrative changes courses that were previously used by NRSB certified individuals are no longer being accepted by NRSB.  The only entry level course approved at this point is C-101 - Radon and Radon Decay Product Measurement Course (CERTI-1).  It is our understanding, the NRSB is reviewing internal policies as to course review and approval.  Once these have been clarified we will address our other courses so as to continue to offer relevant and updated technical information for the radon professional.



RMO New 300 x 287Entry Level Measurement

C-101 - Radon & Radon Decay Product Measurement Course (CERTI-1)

Entry Level course which includes training required for becoming certified in radon measurement.  This popular online course was recently updated (Jan 2016) to include video of a classroom session.  It still includes many extras including business resources and online quiz questions designed to help you prepare for the national certification exam.  Students also have access to the audio version of the course.

RTM collage bEntry Level Mitigation

C-102 - Radon Mitigation Technology (CERTI-2)

Entry level course to become certified in Radon Mitigation in the United States. The instruction is audio based, with online course manual, resources and quizzes to reinforce the material. It also includes a field mentoring program tailored to your experience level.

 *Measurement course is a pre-requisite to this course, if you have not previously completed an approved Measurement Course you can purchase both courses together at a discount.  Click on Course title below and select "Measurement and Mitigation Bundle" for the discounted price of $695 for both courses.


New exam 200 x 143Certification Exams - NRPP National Certification Exams are offered through PSI Lasergrade, which is a nationwide computer based testing facility.  Once you complete the entry level course(s) you are eligible to take the exam.  You schedule the exam by contacting them directly - 800-211-2754.  This is also the contact number to find the closest facility to you.  Instructions for scheduling the exam are included in the course instructions.