Please check with the state radon representative to see if the state where you will be performing work has regulations.
You can find your states information here: https://gispub.epa.gov/radon/ If you are taking the NRSB exam for a state license, you must check with your state
to make sure you are taking the correct NRSB exam. All exam fees are non-refundable.
The exam is valid for one year for NRSB Certification.
If you fail the exam you are able to register again after a 14 day wait period.
A score of 70% or above is passing.
All exam fees are non-refundable.
1. Register and pay for the exam
2. Set up your profile on Prolydian
3. Receive an authorization email to schedule your exam
- Double check your time zone to ensure it is correct.
- You may not cancel or change the day and time within 24 hours of your scheduled exam. All exam fees are non-refundable.
4. Receive confirmation email of date and time of your exam.
5. Review the test-taker handbook if you have questions about the virtual proctor process. Click here for PDF »
6. You will receive a preliminary email after completing the exam with your tentative score.
7. Once your exam has been audited and finalized (within 72 hours of taking the exam), you will receive another email with your final score, detailed score letter and instructions on how to become certified by the NRSB.