NRSB RMT

The exam consists of 75 multiple choice questions, and the examinee has 1.5 hours to complete it. That works out to roughly 72 seconds per question, so pacing matters more than on longer exams. Flag anything that requires arithmetic or careful reading and return to it after clearing the straightforward recall items.

The passing grade is 70%. With 75 questions, that means answering at least 53 correctly. Because the exam is scored as a percentage of items, there is no partial credit pattern to exploit: a missed question costs the same regardless of topic, so do not leave items blank if the format allows a guess.

The exam costs $120. That is separate from the certification fee, which is $125 for 1 year or $200 for two years, paid when you submit the Initial Measurement Technician Application. Budget for both, and note that the application also requires your exam score report and your initial course completion certificate.

Initial RMT certification requires that you take and pass an NRSB-approved 8-hour Initial Measurement Course, then take the NRSB RMT Exam. The course is the natural preparation path because the exam tests the fundamentals of radon testing covered there. Keep the certificate of completion, since it must accompany your application.

The exam is online and available 24 x 7, so scheduling is flexible rather than tied to a testing window. Check the NRSB Digital Exam Information and Exam Scheduling page and the RMT Exam Guidance page for current logistics before you plan your session, since delivery details can change.

Yes. NRSB states that its Certification Exams Study Guide is available on its website at no charge to all, released after several requests. It is the sensible first resource after your 8-hour course. Use it to identify weak topic areas, then go back to your course materials for depth rather than memorizing guide items in isolation.

The source material for this page does not state a retake policy, including any waiting period, attempt limit, or re-examination fee. Treat that as unknown rather than assuming unlimited attempts. Contact NRSB directly at [email protected] or 914-345-1168 before you rely on a second attempt in your schedule.

Certification fees are quoted per 1 year or per two years, which reflects the term you purchase. RMT renewal requires taking and passing NRSB-approved Continuing Education Course(s) totaling 4 CE credits per renewal year, completing the Renewal Measurement Specialist/Technician Application, and paying the certification fee again.

NRSB recognizes all ANSI/AARST radon standards in addition to previously recognized EPA and ASTM radon standards. A certificate holder must follow the standards recognized by the state in which they conduct business, and their QA plan must list the standards being followed. Confirm your state's requirements, since some states run their own certification or registration programs.

Three recurring problems: confusing device-handling and placement conditions, rushing the last third of the 1.5 hours, and skimming quality-assurance and documentation requirements because they feel administrative. Those QA items are exactly what separates a technician who produces defensible reports from one whose data cannot be relied on, so study them deliberately.