Although there are over a dozen different mold remediation certifications, do you know how many of those are accredited?  One.


If you perform mold remediation, you want to work towards obtaining the Council- Certified Microbial Remediator (CMR) from the American Council for Accredited Certification (ACAC).  Unlike other remediation certifications, the CMR is accredited and requires actual experience performing mold remediation.


Indoor Sciences is an approved training provider of the Indoor Air Quality Association.

IAQA Training Provider


CMR Prerequisites

Candidates for the CMR certification must possess one of the following combinations of education and relevant field experience:


  • No degree with at least 2 years of documented experience in microbial remediation (high school diploma or GED required.)
  • A 2-year post-secondary degree or its equivalent (15 credit hours) in microbiology, engineering, science, architecture, industrial hygiene or related field of science with at least one (1) year of documented experience in microbial remediation.

*Please note: If you do not meet these experience requirements, you still qualify for the Council-certified Residential Microbial Remediator (CRMR) certification.


CMR Online and Private Courses

To prepare for the CMR certification, we provide two options: our newly redesigned online course or hosting a private on-site course.


The CMR Online Course is a perfect fit for someone with 2 years of experience and is already familiar with basic mold remediation concepts.  The course involves watching presentations, reading our 100+ page manual, and taking our 100+ question practice examination. This is a 16 hour course that can also qualify you for continuing education credits for several industry organizations. Even though this is an online course, you’ll have the opportunity to communicate with the instructor to answer any questions.  Access to the online training is for 3 months, after which you can purchase extensions if you have not completed. Once complete, you will receive a certificate of completion from the Indoor Air Quality Association (IAQA), our sponsoring organization.  To get the CMR certification, you will need to pass an accredited exam that is offered at a computerized testing center.


The Private On-site CMR Course is ideal for groups that prefer hands-on instruction and are willing to host a class at their facility. This 2-day accelerated program prepares students for the CMR exam while teaching the fundamentals of mold remediation.  In the class, we’ll go through 100+ practice questions to get you prepared.  We also have an interactive time where we discuss important topics such as writing remediation plans and clearance sampling.  Students receive a course manual that will be an excellent study guide as you prepare for the examination.  If you are interested in this option, please reach out to us on our Contact page.


Both the Online and On-site courses include access to our practice exam, which is a great way to experience the breadth and depth of topics covered on the CMR exam. Our CMR practice exam has over 100 questions similar to ones you might find on the ACAC’s Certified Microbial Remediator examination. Because the CMR is an accredited certification, Indoor Sciences does not have a copy of the ACAC’s examination. Although our questions are not identical to those found on the CMR exam, they are based on the very same concepts. We are always refining our practice exam to ensure it reflects the topics currently covered on the ACAC examination.


Indoor Sciences has a successful history of preparing students for the CMR.  In fact, we have a money back guarantee!



The cost of our CMR Online Course is $795.  IAQA members receive a $100 discount.  To register, click CMR Online Course. After registering, you will receive login credentials and we will mail all U.S.-based students a copy of the manual.


ACAC Exam Details

The ACAC’s CMR examination is offered at computerized testing centers.  You can find a proctored testing location by clicking this link: Testing Locations


Here are some additional details about the CMR examination:

  • 100 multiple choice questions with 4 possible answers
  • 3 hours to complete the exam
  • Exam is closed book
  • The passing score is 75%
  • If you fail, you can retake the exam for a fee


Topics Covered in the Course


The following is a detailed table of contents for the course:


  • Goals
  • Course Outline
  • Indoor Air Quality Association
  • American Council for Accredited Certification
  • History of CMR and CMRS
  • Pre-requisites for CMR
  • Pre-requisites for CMRS
  • Certification Application
  • Exam Details
  • Reference Documents

Module 1. Principles of Remediation

  • Mold- What is it?
  • Growth Requirements
  • Mold Spores
  • Growth Cycle
  • Common Mold Types
  • Health Effects of Mold
  • Dampness and Health
  • Bacteria
  • Purpose of Remediation
  • Antimicrobials
  • Antimicrobial Regulations
  • Antimicrobial Terminology
  • Parties Involved In Remediation

Module 2. Guidelines, Standards, and Regulations

  • The Difference Between Guidance Documents
  • Mold Regulations
  • Mold Remediation Standards
  • Mold Remediation Guidelines- New York City
  • Mold Remediation Guidelines- EPA
  • Other Remediation Guidelines
  • Asbestos Regulations
  • Lead Regulations
  • MSDSs
  • ACAC Code of Conduct

Module 3. Water Damage

  • Sources of Water Damage
  • Industry Standards
  • IICRC S500 Background
  • S500 Overview
  • Categories and Classes of Water
  • Categories 1 Water
  • Category 2 Water
  • Category 3 Water
  • Classes of Water Loss
  • Structural Restoration
  • Understanding Moisture & Thermodynamics

Module 4. Personal Protection

  • Introduction to Personal Protective Equipment
  • Respirators
  • Filtering Elements
  • Air Purifying Respirators
  • Powered Air Purifying Respirators (PAPR) and Others
  • Assigned Protection
  • Medical Evaluation
  • Fit Testing
  • Respiratory Protection Plans
  • Eye Protection
  • Coveralls
  • Other Protection (Hands, knees, steal toe, hardhat)
  • Safe Work Practices

Module 5. Structural and Contents Remediation

  • Preliminary Determination
  • Introduction to Engineering Controls
  • Containment
  • Pressure Differential
  • Air Changes
  • More on Air Filtration Devices (AFDs)
  • Cleaning vs. Removal
  • Non-porous Surfaces
  • HEPA Sandwich
  • Semi-porous surfaces
  • Porous Surfaces
  • Egress
  • Contents
  • Disposal

Module 6. HVAC Remediation

  • HVAC Systems and Equipment
  • Residential HVAC Systems
  • Commercial HVAC Systems
  • Ductwork
  • Porous and non-porous materials in HVAC Systems
  • Duct Cleaning Overview
  • ACR- The NADCA Standard
  • Duct Cleaning Methods
  • Mold in Ductwork
  • Chemicals in Ductwork
  • Duct Cleaning Verification
  • System Cleaning vs. Duct Cleaning
  • HVAC System During Mold Remediation

Module 7. Project Documentation

  • Documentation
  • Remediation Plan
  • Conflicts of Interest
  • Mold Inspections and Remediation Plans
  • Items to Include in Remediation Plans
  • Prescriptive vs. Performance
  • Solving the Moisture Problem
  • Contracts
  • Recordkeeping
  • Communication
  • Signage
  • Reporting
  • Verification
  • PRV Procedures
  • PRV Sampling
  • State of Texas PRV Rules
  • After the Verification

Module 8. Practice Examination


What are the cancellation and refund policies?

Need to cancel a class?  Click on the following link: Cancellation and Refund Policy.


If you have any questions, call our office at (312) 920-9393.