NRSB Radon Measurement Specialist (RMS) renewal (National (NRSB)) — 2026 guide
Issued / managed by National Radon Safety Board
Renewal cycle
Every 1 year
Certification term sold as $125/1 year or $200/2 years — pick your cycle at renewal; renewal CE must be NRSB-approved.
Continuing education
8 CE hours per renewal cycle.
Summary
NRSB Radon Measurement Specialist certification renews on the term you purchase (1 year at $125 or 2 years at $200) and requires 8 NRSB-approved CE credits per renewal year, plus the renewal application and fee. Mitigation (RRS) and technician (RMT) categories carry the same fee structure with 8 and 4 CE credits per year respectively.
Notes & state variations
Alternate national certification body to NRPP (not a state license). CE is per renewal year: RMS and Radon Mitigation Specialist (RRS) each need 8 CE credits/year; Radon Measurement Technician (RMT) needs 4/year. Some states (e.g. IL) license radon professionals independently — separate state rules may stack.
Verified from NRSB official site (nrsb.org — certification requirements & renewal) on Oct 12, 2026, via socks5 proxy.
Source for verification: NRSB (nrsb.org). Paraphrased — not the agency's official wording; not legal advice.
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Open the deadline trackerFrequently asked questions
How often does the NRSB Radon Measurement Specialist (RMS) need to be renewed?
Every 1 year. Certification term sold as $125/1 year or $200/2 years — pick your cycle at renewal; renewal CE must be NRSB-approved.
How many continuing education (CE) hours are required?
8 hours of approved continuing education per renewal cycle. Alternate national certification body to NRPP (not a state license). CE is per renewal year: RMS and Radon Mitigation Specialist (RRS) each need 8 CE credits/year; Radon Measurement Technician (RMT) needs 4/year. Some states (e.g. IL) license radon professionals independently — separate state rules may stack.
What does renewal cost?
Certification term sold as $125/1 year or $200/2 years — pick your cycle at renewal; renewal CE must be NRSB-approved.
What happens if my credential expires?
The fee note above covers a timely renewal. If the credential has already expired, the rules change — confirm your exact situation (grace window, surcharges, or reapplication) with National Radon Safety Board before paying for renewal.
Related environmental readings & training axis: see sister app EnviroCert