RMFT Passing Score 2026: Exactly What You Need to Pass

What "Passing" Means on the NRPP RMFT Exam

If you are searching for the exact score that earns you the Radon Measurement Field Technician credential from the National Radon Proficiency Program (NRPP), the honest answer is more nuanced than a single number. NRPP does not advertise a fixed percentage. Passing is criterion-referenced: it is based on expert judgments about what a competent field technician should be able to do, not on how many other candidates you outperform.

That distinction matters for how you prepare. On a norm-referenced test, your result depends on the cohort. On a criterion-referenced test, your result depends on whether you demonstrate competent performance against a defined standard. Aim to master the content rather than to hit a guessed percentage.

Why There Is No Published Cut Percentage

The NRPP Candidate Handbook (document 3-007-4 V7) describes the passing standard in terms of expert judgments of competent performance. It also allows the threshold to reflect the difficulty of the specific exam form you receive. In practice, that means two candidates who answer the same number of questions correctly could, in principle, face slightly different cut thresholds if their forms differ in difficulty.

What this means for you

• Ignore rumored percentages. Forum posts claiming a specific cut score are not backed by NRPP's published materials.
• Do not rely on pass-rate lore. Without a published pass rate, treat any quoted figure skeptically. See our discussion of what the RMFT pass rate data does and does not show.
• Study for competence, not a number. The credential exists to certify that you can deploy and retrieve measurement devices correctly under supervision, and the exam tests exactly those competencies.

For a broader view of difficulty, see How Hard Is the RMFT Exam?, which frames what candidates typically find challenging without inventing statistics.

Exam Format That Shapes Your Score

The live NRPP registration page currently advertises the examination format effective October 1, 2024. Understanding the structure helps you pace yourself and avoid wasting effort on questions that will not affect your result.

The unscored trial items

Ten of the 95 questions do not count toward your result, but you cannot tell which ones they are. The correct strategy is simple: treat every question as scored. Do not spend extra time agonizing over an item that "feels experimental," and do not skip one on the assumption it is a trial question.

Pacing

Two hours for 95 items works out to a little over a minute per question. Calculation-heavy items will take longer, so bank time on straightforward knowledge questions and flag anything that needs the on-screen calculator for a second pass.

Where Your Points Come From: The Five Domains

The official weighted exam objectives appear in Appendix A of the Candidate Handbook. They are exam objectives, not training-curriculum headings, so your course may organize topics differently than the exam does. Here is how the blueprint distributes weight:

For a deeper breakdown of every content area, read our complete guide to all five RMFT exam domains.

The Pending Exam Replacement: What to Verify

This is the single most important caveat in any discussion of RMFT scoring in 2026. A December 5, 2025 announcement from IEA/NRPP (published at aarst.org) describes an approved replacement exam targeted for mid-2026, with no firm implementation date. The announced changes include:

The announcement also references added chain-of-custody content. However, no replacement domain list or weights have been verified, so you should not assume the 16/24/28/14/18 blueprint carries over to the new form. Likewise, do not assume the replacement is already live: the registration and certification pages still advertise the older exam and requirements.

Exam-Day Rules That Protect Your Score

Many failed attempts are not knowledge failures. They are procedural slips. The conduct requirements (Exam Security and Conduct Requirements, Version 5, April 25, 2025) are strict, and a violation can end your session regardless of how well you were doing.

What the platform gives you

• MAH-2023 and MS-QA-2023 available as on-screen references
• A built-in calculator
• Formulas supplied within the exam platform

What you may not use

• Personal reference materials of any kind
• Paper for scratch work
• Your own calculator

Check-in and conduct

• A government-issued photo ID is required.
• You must complete a room scan for the live remote proctor.
• One authorized bathroom break is permitted, limited to five minutes.

Because the provided documents are available during the test, familiarity with where information lives inside MAH-2023 and MS-QA-2023 is a real advantage. You are not expected to memorize everything, but you must be able to locate and apply it quickly. Our RMFT cheat sheet is useful for pre-exam review, but remember it cannot be used during the test itself.

Retakes, Fees, and What a Fail Costs

Because passing is not guaranteed on the first try, it helps to understand the retake mechanics before you schedule.

• Cost per attempt: USD 125, nonrefundable.
• Waiting period: 30 days must pass between attempts.
• Attempt cap: no more than four attempts in a 12-month period.
• Scheduling window: you must schedule and complete the exam within 30 days of purchase.
• Cancellation: canceling within 24 hours of your appointment requires you to repurchase.

Because the 30-day purchase-to-completion window and the 24-hour cancellation rule are unforgiving, schedule only when you are genuinely ready and have a quiet, compliant space for the remote proctoring session. For scheduling specifics, see RMFT exam dates, windows, and deadlines.

After You Pass: The Rest of Certification

A passing result alone does not make you certified. Initial certification involves several additional published requirements:

1. An approved minimum 12-hour measurement course completed within two years
2. An examination result no older than one year
3. A signed Code of Ethics
4. A photograph
5. A Statement of Professional Responsibility from your supervising NRPP Measurement Professional
6. The USD 250 initial certification fee, separate from the exam and training costs

Notice the timing constraints: your exam result must be no older than one year, and your course must fall within two years. Passing early and then delaying the paperwork can cost you a retake. Details on each prerequisite are in our RMFT requirements guide.

Supervision and renewal

RMFTs deploy and retrieve devices under a supervising RMP and within that RMP's QA/QC oversight at the same company. Under the policy effective September 1, 2025, supervisor changes must be reported within seven business days. Renewal runs on a two-year cycle and requires 8 Category I CE hours, including a mandatory four-hour standards overview, plus a USD 250 renewal fee.

Also check state acceptance separately. This credential is not a substitute for a state license, and requirements vary by jurisdiction. If you are weighing the credential's value, see whether the RMFT certification is worth it.

A Domain-Weighted Prep Plan

Since the pass line is not a published percentage, allocate effort in proportion to the blueprint and to the places where field technicians most often make costly errors. This sample sequence ties each week to a specific domain and the reason for its position.

For a fuller methodology, our RMFT study guide walks through a first-attempt approach, and you can test yourself on the RMFT practice test platform. Just confirm that any timed mock matches the exam version you will actually receive.

Frequently Asked Questions

Because the passing standard is competence-based rather than a published number, your best protection is thorough preparation across all five domains, careful attention to exam-day rules, and early confirmation of which exam version applies to you. If you want to understand the credential itself in more depth, start with what RMFT certification is.