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Radon Measurement and Mitigation Certification Exam Information
National and New Jersey State Exam Instructions


The ERRTC at Rutgers no longer administers certification exams.

Below are the directions for scheduling your NJ state or national radon measurement and/or mitigation exam(s). Click the exam name you are interested in for more information.

There are two national certifying boards: The National Radon Proficiency Program and the National Radon Safety Board. Both are equally respected though the industry, however, just as some states have state-specific certifications, some states do prefer one national certification above the other. Be sure to check with your state radon office for local certification requirements.  To become nationally certified as either a radon measurement or mitigation service provider, you must attend an entry level course, pass a certification exam and complete an application and return it to one of the National Certifying Boards (NRPP or NRSB) .

NRPP Certification Exams

Steps for Registration

  • Log onto www.psiexams.com
  • Create an Account (located on the right-hand side of the webpage)
  • Follow the directions carefully
  • Exam Fee is $110.00 for any exam each time you take it

Definitions you need to know

  • Organization = Certification/Professional Associations
  • Sponsor = National Radon Proficiency Program (NRPP)
  • License Name - Name of the exam you are registering to take. For example:
    • Residential Radon Measurement Provider Examination
    • Residential Radon Mitigation Provider Examination
  • NRPP Entry Level Course ID # = ID will be on your Course Completion Certificate from the training provider who administered your coursework. If you do not see an NRPP Course ID # on your certificate, contact your training provider and ask for this number.

Once you have registered for your exam, you will receive a confirmation email from PSI letting you know that your registration for the date, time, and exam location is complete.

If you have any problems or issues with your registration, you will need to call PSI directly at 1-800-211-2754. Be advised that you may experience long hold times or you will have to leave a message for the customer service agents to call you back. Once you start the registration process, the NRPP Administrative Office will not be able to assist you as the office does not have access to your registration process with PSI.



NRSB Certification Exams

Contact NRSB directly at 866-329-3747.



New Jersey Certification Exams

Steps for Registration

  • Log onto www.psiexams.com
  • Create an Account (located on the right-hand side of the webpage)
  • Follow the directions carefully
  • Exam Fee is $110.00 for any exam each time you take it

Definitions you need to know

  • Organization = Certification/Professional Associations
  • Sponsor = National Radon Proficiency Program (NRPP)
  • License Name - Name of the exam you are registering to take. For example:
    • New Jersey Measurement Specialist Exam
    • New Jersey Measurement Technician Exam
    • New Jersey Mitigation Specialist Exam
    • New Jersey Mitigation Technician Exam
  • NRPP Entry Level Approved for New Jersey Course ID # = ID will be on your Course Completion Certificate from the training provider who administered your coursework.
  • Measurement Course Providers who have been approved for New Jersey are:
    • ERRTC (Rutgers University)
    • ECAN
  • Mitigation Course Providers who have been approved for New Jersey are:
    • ERRTC (Rutgers University)

Once you have registered for your exam, you will receive a confirmation email from PSI letting you know that your registration for the date, time, and exam location is complete.

If you have any problems or issues with your registration, you will need to call PSI directly at 1-800-211-2754. Be advised that you may experience long hold times or you will have to leave a message for the customer service agents to call you back. Once you start the registration process, the NRPP Administrative Office will not be able to assist you as the office does not have access to your registration process with PSI.


If you have any questions or need more information, the ERRTC is here to help! Feel free to call or email us any time for additional clarification regarding the examination process.