Mold guide
Mold Remediation Certifications: IICRC, ACAC and NORMI Explained
A mold remediation certification is a training credential from an industry body such as the IICRC, ACAC, or NORMI, and because Pennsylvania has no state mold license, these credentials are one of the few ways Gettysburg homeowners can judge a contractor's training. Here is what each one means, how to check it, and what it cannot tell you.

By Dale Hoffman, Remediation Lead
Published

Why Certifications Matter More in Pennsylvania
A few states, such as Texas, New York, and Florida, license mold remediation work. Pennsylvania does not. There is no state exam, no state license number, and no state board for mold. Home improvement contractors doing more than $5,000 in work a year must register with the PA Attorney General, but that registration does not test mold knowledge.
That leaves private certifications as the main signal of training. They are useful, but they certify a person's training, not the quality of a specific job.
This is routine work for Gettysburg mold remediation.
The Main Certifying Bodies
IICRC (Institute of Inspection, Cleaning and Restoration Certification)
The IICRC is a nonprofit certification and standards body for the cleaning and restoration industry. It publishes the ANSI/IICRC S520 Standard for Professional Mold Remediation, the most widely referenced standard for this work, and the S500 standard for water damage restoration.
- WRT (Water Damage Restoration Technician): covers drying and water damage. It is a prerequisite for AMRT.
- AMRT (Applied Microbial Remediation Technician): the IICRC's core mold remediation course, covering containment, negative air, removal, and cleaning, with hands-on training.
- Certified Firm: a company-level designation for businesses that employ IICRC-certified technicians and meet IICRC requirements such as insurance.
IICRC credentials require continuing education to stay current.
ACAC (American Council for Accredited Certification)
ACAC offers certifications for both remediators and indoor air quality professionals. Its credentials typically require documented work experience in addition to passing an exam, and they have tiers:
- CMR (Council-certified Mold Remediator)
- CMRS (Council-certified Microbial Remediation Supervisor)
- CMI (Council-certified Microbial Investigator) for people who inspect and assess mold, not remove it
NORMI (National Organization of Remediators and Mold Inspectors)
NORMI offers training and certifications for both sides of the work, including Certified Mold Remediator and Certified Mold Assessor credentials. It also publishes its own professional practice guidance.

Comparing Mold Credentials
| Credential | Issuer | Role | Experience required? |
|---|---|---|---|
| AMRT | IICRC | Remediation technician | WRT prerequisite; course and exam |
| IICRC Certified Firm | IICRC | Company designation | Certified staff and insurance |
| CMR / CMRS | ACAC | Remediator / supervisor | Documented experience plus exam |
| CMI | ACAC | Inspector / assessor | Documented experience plus exam |
| Certified Mold Remediator | NORMI | Remediator | Course and exam |
| Certified Mold Assessor | NORMI | Inspector / assessor | Course and exam |
Requirements change over time, so check each organization's current rules.

How to Verify a Certification
- Ask for the technician's full name and credential number.
- Look them up on the issuing body's website. The IICRC, ACAC, and NORMI each offer a way to verify credentials.
- Check the expiration date. Lapsed credentials are common.
- Confirm the certified person will actually be on your job, not just someone in the home office.
What a Certification Does Not Tell You
A certificate shows someone passed a course. It does not show the company carries insurance, will fix the moisture source, or will let an independent tester check its work. Ask those questions too. Our guide on choosing a mold remediation company lists ten of them. Also useful: the EPA's remediation guide, which lays out the same basic principles of containment, removal, and moisture control.

Inspector vs. Remediator Credentials
Assessing mold and removing mold are separate roles. Many professionals recommend that the person who tests your home, especially for clearance after the job, be independent from the company doing the work. When you check credentials, make sure the inspector holds an assessment credential and the remediator holds a remediation credential.

What This Means for Gettysburg Homeowners
In the Gettysburg area, you may find general contractors, water damage companies, and home inspectors all offering mold services. Credentials help sort them out. Keep in mind that old homes in the historic district, with fieldstone foundations and plaster walls, reward hands-on experience that a certificate alone may not show. Ask for a detailed plan specific to your home. And once the job is done, how to prevent mold matters more than any credential.
When to Call a Professional
If you are comparing contractors, ask each one to walk you through their process step by step. You can compare their answers against our mold remediation process, which follows the IICRC S520 standard, or call us 24 hours a day at (717) 420-8919.
This one comes up on more than one kind of job: mold inspection and testing in Gettysburg and how our remediation process works.
