The American Council for Accredited Certification ( offers three certifications related to mold remediation. What differentiates these certifications is the amount of experience the students have.  Here is a list of the certifications and experience requirements:

  • Council-certified Microbial Remediation Supervisor (CMRS): 8 years
  • Council-certified Microbial Remediator (CMR): 2 years
  • Council-certified Residential Microbial Remediator (CRMR): 0 – 2 years

So if you are relatively new to mold remediation, the CRMR is the best certification for you.  Although the CMR and CMRS certifications are accredited, the CRMR is non-accredited.  Don’t worry though… in no time you’ll build up your experience and qualify for the CMR.  The CRMR is a great way to show that you are on the path to becoming a CMR!


Training and Certification

Unlike other organizations that combine training and certification, our training is sponsored by the Indoor Air Quality Association and the certifications are offered by the ACAC. This firewall between the training organization (IAQA) and the certification organization (ACAC) allows many of ACAC’s certifications to be accredited.


Our company, Indoor Sciences, is an approved training provider of the IAQA.

IAQA Training Provider


About the CRMR Course

Our CRMR Course is an online program that can be accessed at any time of day or night to fit into your busy schedule.  You can go through the training material a multiple number of times to ensure you fully understand the concepts.  The 16-hour class includes watching presentations online, reading a 100+ page manual, and taking a 100+ question practice examination. By completing these tasks, you’ll be ready to take the ACAC’s CRMR certification exam.


For U.S. based students, we will mail you a physical copy of the course manual.  Students also receive a username and login to access the presentations and online practice exam.



The cost of the course is $795.  Active IAQA members are given a $100 discount.  To register for the CRMR Online Course, visit this page in our store: CRMR Registration.  If you have any questions, give us a call at (312)920-9393.


Due to the similarities with the CMR and CMRS certifications, students for all three certifications take the same course.  To see a full outline of the course, visit this link on the CMR page: Course Outline.