The Certified Mold Remediator (CMR) exam is for candidates seeking the mold remediator credential from the National Organization of Remediators and Microbial Inspectors (NORMI). This page brings together free practice sets, worked answers, and verified exam details to help you plan your preparation. Our practice content is written with AI tools; the sample questions are our own, not real exam questions or an official exam outline.
The CMR has 100 questions and takes about 2 hours[1] (National Organization of Remediators and Microbial Inspectors, verified Oct 27, 2026).
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
| Item | Detail | Source · Verified |
|---|---|---|
| Number of questions | 100 questions[1] | besttrainingschool.com · Oct 27, 2026 |
| Time limit | 2 hours[1] | besttrainingschool.com · Oct 27, 2026 |
| Passing score | 70%[2] | National Organization of Remediators and Microbial Inspectors · Oct 27, 2026 |
| Exam fee (Challenge Exam) | $389[3] | besttrainingschool.com · Oct 27, 2026 |
| Exam fee (Post-Course) | $299[3] | besttrainingschool.com · Oct 27, 2026 |
| Retake fee | $149[3] | besttrainingschool.com · Oct 27, 2026 |
| Retake policy | Course retake required if failed twice[4] | besttrainingschool.com · Oct 27, 2026 |
| Renewal | 7 hours of CEUs annually by August 31st[5] | National Organization of Remediators and Microbial Inspectors · Oct 27, 2026 |
| Delivery | Online proctored or onsite[1] | besttrainingschool.com · Oct 27, 2026 |
| Eligibility | Training recommended but not required for exam[2] | National Organization of Remediators and Microbial Inspectors · Oct 27, 2026 |
| Score release | Within 10 business days via email[6] | besttrainingschool.com · Oct 27, 2026 |
| Testing window | Every Tuesday at 1:00 PM Eastern[6] | besttrainingschool.com · Oct 27, 2026 |
According to National Organization of Remediators and Microbial Inspectors, “This 100 question, 2 hour examination is given at the locations and on the dates listed below in a proctored setting.”[1]
The CMR examination is for candidates pursuing NORMI's Certified Mold Remediator credential. It contains 100 questions, allows 2 hours, and has a 70% passing score. Delivery is online with proctoring or onsite. Best Training School's exam-only page describes the delivery options; check the registration information for your selected sitting.
Training is recommended but not required to take the examination. NORMI states this on its examinations for mold assessor and mold remediator page. That exam-entry rule should not be read as a statement about every requirement for obtaining or maintaining the credential.
The listed exam fee is $389 when challenging the exam without taking a class, or $299 after completing a CMR course. The listed retake fee is $149. Best Training School states that failing the exam twice requires taking the course again at your own expense.
Best Training School's registration information lists proctored examinations every Tuesday at 1:00 PM Eastern and grade documentation by email within 10 business days. Confirm scheduling through that official registration source before making arrangements. No official content-area outline has been verified for this page, so the practice-set titles below are study categories, not an official blueprint.
Prepare for the CMR - Certified Mold Remediator exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Question: A vapor barrier installed on the wrong side of a wall assembly in a cold climate can:
Answer: B. Trap moisture within the wall cavity and promote mold
Explanation:
B is correct: a poorly placed vapor barrier can restrict drying and allow moisture to accumulate within a wall, creating conditions that support mold. The question asks what can happen, rather than describing an inevitable outcome for every wall assembly. A is wrong because incorrect vapor-barrier placement does not establish improved energy efficiency. C is wrong because trapping moisture in a wall does not naturally reduce indoor humidity. D is wrong because a wall vapor barrier does not by itself prevent condensation on window frames. Remember the moisture-control principle: consider climate, the wall's materials, and its drying paths together. Vapor control and air-leakage control are related but distinct concerns.
Question: What should be done when strategic implementation encounters unexpected obstacles?
Answer: A. Assess the situation, adjust the plan as needed, and communicate changes to stakeholders
Explanation:
A is correct: assessing the obstacle helps determine what has changed, adjusting the plan addresses that change, and communicating keeps affected stakeholders informed. B is wrong because an unexpected obstacle does not automatically make the entire strategy unusable; abandoning it before assessment skips the decision that matters. C is wrong because continuing unchanged ignores information that may affect whether the work can proceed as planned. D is wrong because blame and reassignment do not establish the cause of the obstacle or an appropriate response. Remember the general rule: investigate the problem, make a justified adjustment, and explain the change to the people it affects.
Question: Which of the following actions violates mold remediation safety standards?
Answer: B. Dry sweeping mold-contaminated debris.
Explanation:
B is correct: dry sweeping can lift mold-contaminated dust and debris into the air, increasing exposure and spreading contamination. A is wrong because HEPA vacuuming is a cleanup method intended to capture fine particles rather than scatter them. C is wrong because sealing moldy waste in bags helps contain debris during handling and disposal. D is wrong because controlled wetting can limit dust release during removal; it should not be interpreted as soaking materials or adding uncontrolled moisture. Remember the general rule: choose methods that contain contamination and limit airborne dust. The other options describe useful controls, but none alone establishes that an entire remediation job is safe.
Begin with NORMI's examination information and the Best Training School registration details. Check the delivery arrangement, fee category, and scheduling information that apply to your booking. Keep official material beside your practice notes so you can distinguish exam requirements from our study categories.
Start your practice with Moisture Control & Building Science and Mold Inspection & Assessment. For each missed answer, write down the condition you overlooked and why your chosen option fails.
Move to Mold Remediation Techniques & Procedures and Safety & Health Standards. Explain your choice before reading the answer. Revisit any explanation you cannot connect to the question's details.
Use Regulatory Compliance & Documentation to identify topics to check against official material. Treat broader management and communication sets as supplementary practice, since no official blueprint is verified here. Before test day, revisit your error notes and practise pacing with the verified 100-question, 2-hour format in mind.
No. NORMI states that training is not required to take the examination, although it highly recommends training. Its examinations for mold assessor and mold remediator page is the official source for that distinction. The listed exam fees distinguish candidates challenging the exam from candidates who have completed a CMR course.
The listed fee is $389 for the challenge exam without a class, or $299 after completing a CMR course. A retake is listed at $149. Best Training School's CMR-MRSR exam fee listing provides these categories, so use the category that matches your course history when checking registration.
The exam is available online with proctoring or onsite. It has 100 questions and a 2-hour time limit, with a passing score of 70%. Best Training School's registration information lists examinations every Tuesday at 1:00 PM Eastern and grade documentation sent by email within 10 business days.
Best Training School lists a $149 fee to retake the remediator exam after a failed attempt. Its registration terms also state that if you fail the exam twice, you must take the course again at your own expense. Check those official retake terms when arranging another attempt.
NORMI's FAQ states that it requires 7 hours of continuing education each year by August 31st. It also states that free online continuing education training is available to active members. Use the official NORMI FAQ as the source when planning how to meet that annual education requirement.
How we verify: editorial & fact-checking policy. Report an error: contact us.