Mold Remediation Training: Courses, Schools and Which One You Need

The IICRC sequence is WRT first, AMRT second.

WRT — Water Restoration Technician — has no prerequisite, and AMRT requires it before you can take the mold course.

IICRC describes WRT as a 3-day, 19-hour course, not counting exam time, lunch and breaks, and AMRT then covers mold and sewage remediation.

The IICRC is a certifying body, not a school.

It owns no schools and has no instructors on staff — every IICRC class is run by a third-party approved school or instructor that has applied and met board criteria.

To become certified, you attend an IICRC-approved course, pass a written exam and document skills in the subject; IICRC certification classes run from one to five days depending on the course.

Our research did not find a class length for AMRT on IICRC's own pages, so treat the school's calendar listing as the length rather than a number repeated from a map or ad.

The format is fixed, though: AMRT is in-person only as of October 2026.

The no-course route is the IICRC's Mold Remediation Specialist (MRS) certification.

MRS has no course or training attached: applicants need at least one year of verifiable hands-on mold remediation field experience, pay a $150 application fee and a $300 exam fee, and sit a 2-hour exam of 100 scored multiple-choice questions.

The exam is offered only in US English, with Imperial measurements.

Which route is shorter depends on where you start: a tech with the field year already banked may find MRS the faster path, while a newcomer builds the WRT-then-AMRT sequence.

What the job itself involves day to day is the role's own topic — the mold remediation technician career guide covers the work, the PPE reality and the career.

AMRT is the IICRC's course-and-exam route, and it is not the only name in mold credentials.

Other credentials you will run into include ACAC's experience-based certifications and NORMI's course-based certifications — and in the states that license mold work, the state's own training and exams, which the next section covers.

On the IICRC side, the course calendar at iicrccert.org lists upcoming approved certification courses, searchable by course, country, state and date, with columns for instructor, approved school and sponsor.

IICRC staff will not recommend a specific school or instructor, so the calendar and the Approved Schools list are the tools you have.

As of October 2026, that list includes Reets Drying Academy, Restoration Sciences Academy, Aramsco University, Belfor University, PuroClean Academy, Servpro Industries LLC, Paul Davis, Rytech Franchising, ServiceMaster, the Restoration Industry Association (RIA) and LearnToRestore.com.

Check any provider against that list before you pay a deposit.

Some sites resell or list classes from many providers; those are marketplaces, not the approved school running the course.

ACAC takes a different path: its Council-certified Microbial Remediator (CMR) requires 2 years of field experience — or a mix of experience and college credits — and its Council-certified Microbial Remediation Supervisor (CMRS) requires 8 years, or a mix.

Both are built on documented field experience rather than a class.

NORMI — the National Organization of Remediators and Microbial Inspectors — says it has trained mold and indoor-environment professionals since 2004 and offers more than 32 certifications.

Its credential list includes a Certified Mold Assessor (CMA), a Certified Mold Remediator (CMR), a Qualified IAQ/Mold Inspector credential with an 8-hour course, and Florida- and New York-oriented assessor, remediator and worker courses.

One abbreviation to watch: CMR means two different credentials.

ACAC's CMR is the Council-certified Microbial Remediator; NORMI's CMR is the NORMI Certified Mold Remediator, a different credential with a 24-hour course.

Where a credential counts is set by whoever accepts it.

Washington DC's DOEE lists the IICRC's AMRT and MRS among its approved mold examinations for remediators, alongside ACAC credentials and several training-provider exams.

Connecticut's law, from October 1, 2026, accepts an attestation of certification by IICRC, NORMI or another organization the DCP commissioner approves.

Illinois's mold registration act — enacted but not in effect until IDPH adopts rules — would require remediators to register with evidence of active third-party certification, and IDPH's mold FAQ names ACAC, IICRC and NORMI as certifying bodies consumers can search.

State training requirements exist where a state licenses mold work — Texas, Florida, New York, Louisiana and the District of Columbia among them, each with its own agency, credential tiers and course rules.

One state's requirement never transfers to another, and what follows is only the short version.

Texas moved its mold program from DSHS to the Texas Department of Licensing and Regulation (TDLR) on November 1, 2017.

TDLR issues credentials from the Mold Remediation Worker registration up through assessment technician, remediation contractor and assessment consultant licenses — plus company and analysis-laboratory licenses — and accredits the training providers.

Under the state's training rule at 16 TAC §78.68, initial courses must run at least 4 training hours for remediation workers, 24 hours for assessment technicians, and 40 hours each for remediation contractors and assessment consultants.

The worker registration costs $50, requires being at least 18 with an initial worker course certificate, and a registered worker may only remediate under a licensed Mold Remediation Contractor.

TDLR-approved courses cover one license type each, and a student absent for more than 10% of instruction cannot complete the course.

Florida's Department of Business and Professional Regulation licenses mold assessors (credential MRSA) and mold remediators (MRSR).

Florida requires license applicants to have passed the licensing examination and to have documented training in water, mold and respiratory protection.

New York licenses mold work under Labor Law Article 32, effective January 1, 2016 — performing or advertising mold assessment or remediation without a DOL license is unlawful under Labor Law §931.

The DOL approves courses by role: a 4-day Mold Assessor course, a 3-day Mold Remediation Contractor course and a 2-day Mold Abatement Worker course.

The abatement worker license requires being 18 or older, completing the DOL-approved course and paying a $50 application fee.

Louisiana requires a Mold Remediation license from the Louisiana State Licensing Board for Contractors (LSLBC) for mold remediation projects valued at $7,500 or more.

The license's qualifying party needs 24 hours of training in mold remediation and basic mold assessment.

Washington, DC licenses mold professionals: D.C. Code §8-241.03 bars engaging in the business of residential indoor mold assessment or remediation unless certified and licensed under rules the DOEE Director issues.

Outside the licensing states, other rules can still bind.

Virginia repealed its own mold inspector and remediator regulations effective August 15, 2012.

Selling residential mold remediation there without a certification from a nationally or internationally recognized certifying body is a Consumer Protection Act violation, and the work must follow the EPA mold guide, ANSI/IICRC S520 or an equivalent ANSI-accredited standard.

From October 1, 2026, Connecticut treats residential water, fire and storm restoration and mold remediation as home improvement under Public Act 26-100, so residential restoration contractors need home improvement contractor registration, with small-job carve-outs in the statute for very small contracts.

Connecticut contractors must also do mold remediation in accordance with ANSI/IICRC S520 — currently the Fourth Edition, 2024 — or a successor the DCP commissioner approves.

Illinois enacted the Mold Remediation Registration Act (Public Act 103-0893), but registration is not in effect until IDPH adopts rules.

IICRC classes run in two formats: in-person, and live-stream — online but instructor-led, with a live cohort.

As of October 2026, AMRT is in-person only, alongside ASD.

WRT, FSRT, OCT, HST, CPT, TCST, CDS and CCT are offered both live-stream and in-person, so the WRT prerequisite can be done live-stream even though the mold course itself cannot.

IICRC notes that formats are subject to change.

The live-stream mechanics are strict.

A live-stream class requires a computer or laptop with camera and microphone, a strong internet connection and a copy of photo ID when paying.

Classes are capped at 20 people, attendance is taken daily, and missing any part of any day forfeits your eligibility for certification.

Live-stream students also pay a separate certification fee to the IICRC.

Exams follow the format.

In-person students take the exam on the last day of the class; live-stream students take it through the IICRC Online Exam Portal, with 45 days from the last class date to complete it.

The MRS has no course, so the format question does not apply — it is an application, the fees and the exam.

State-approved courses are their own lists: New York's DOL names its 4-day, 3-day and 2-day courses by role, and whether any state course can be taken online comes down to what that state approves.

Language matters too.

The IICRC course calendar lists Spanish-language versions of WRT, FSRT, OCT, CCT, CCMT, UFT and the ASPWR apprentice program, but no Spanish AMRT appears — French versions of ASD and AMRT do.

A course on the calendar dropdown is not a promise a class is scheduled, so check the calendar for actual dates.

Budget the IICRC route in two parts: tuition to the school, and exam fees to the IICRC.

The IICRC exam fee and retest fee are each $80 per exam, except AMRT and inspection exams at $150 as of October 2026 — and tuition is separate, set by each school.

Retesting is bounded on the course route: IICRC allows three attempts per certification course — one initial exam plus two retests — within 45 days.

Certification is not one-and-done.

IICRC certified technicians renew annually, with the FAQ showing example fees of $46 and $58 that vary with the number and type of certifications held, and they need 14 CEC hours every four years — Master designations and inspectors, 14 every two years.

Missing the CEC requirement suspends registrant status until the CECs and any other requirements are met.

The MRS route carries its own numbers: a $150 application fee and a $300 exam fee.

Who pays is a two-sided question, and one fact anchors it: IICRC certifications belong to the technician, not the employer, and stay in the technician's name when they change companies.

An employer-funded certification is an investment that can walk across the street; a self-funded one stays yours.

Whether your training time is paid is a wage-hour question with its own rule.

Under the FLSA rules at 29 CFR 785.27, training time is unpaid only if it is outside regular hours, truly voluntary, not directly related to the job, and no productive work is done.

Training is not voluntary under 29 CFR 785.28 if the employer requires it or leads you to believe skipping it will hurt your job — an employer-required certification class generally fails that voluntary test.

Confirm a specific arrangement with the Department of Labor's Wage and Hour Division or an employment attorney.

Two funding channels exist, and neither is automatic.

WIOA training funds go only to Eligible Training Providers on a state's ETPL, usually paid through an Individual Training Account chosen with a career planner.

For an adult or dislocated worker, the conditions include three: the one-stop must judge you to need training, the training must link to local job openings, and other grant aid such as Pell Grants must be unavailable.

WIOA Adult funds must give priority to public-assistance recipients, other low-income people and people who are basic-skills deficient, and access runs through local American Job Centers.

Our research did not confirm which IICRC-approved schools appear on any state's eligible provider list, so ask the center directly.

The GI Bill can reimburse licensing and certification test fees up to $2,000 per test, for tests a job requires.

Our research did not confirm that an IICRC exam is a VA-approved test, so check the VA's current list before counting on it.

Mold work carries a safety stack with it, and none of it is an IICRC course.

OSHA has no mold-specific standard; its mold standards page points to general sanitation standards and cites IICRC S500 and S520 as non-regulatory consensus standards.

S520 — Professional Mold Remediation — is currently the Fourth Edition, 2024.

Respirators are the headline item, and the duty sits with the employer.

Under 29 CFR 1910.134(c)(1), wherever respirators are necessary or required by the employer, the employer must have a written respiratory protection program with worksite-specific procedures.

The same standard requires fit testing before first use, when the facepiece changes, and at least annually thereafter.

One IICRC course that pairs with the safety stack is the Health and Safety Technician (HST) class — IICRC describes it as a 2-day, 14-hour course covering OSHA standards, PPE, hazard communication, confined spaces and bloodborne pathogens.

Bloodborne pathogens training under 29 CFR 1910.1030 must be given when a worker is first assigned to tasks with possible exposure and at least once a year after that.

HAZWOPER applies narrowly.

General hazardous-waste site workers need at least 40 hours of off-site instruction plus 3 days of supervised field experience; occasional limited-task workers need 24 hours plus 1 day, and HAZWOPER-trained workers need an 8-hour refresher every year.

Those minimums attach to covered hazardous-waste operations and emergency response — not to ordinary water and mold jobs.

Whether a specific site triggers HAZWOPER is a call made under OSHA's rule, not by the job title.

OSHA's 10- and 30-hour Outreach classes round out the stack, and OSHA is blunt about what they are: voluntary, not a certification, and they do not meet the training requirements of any OSHA standard.

The 10-hour class targets entry-level hazard awareness and the 30-hour class supervisors and workers with some safety responsibility, in Construction and General Industry versions.

Online versions are different: OSHA says it cannot validate online training from vendors not on its authorized-provider list.

Career information, not licensing, legal, insurance, health or safety advice for a specific job. Training, licensing and OSHA rules change, and the details here are as our research read them — confirm current requirements with the state agency, OSHA, the IICRC or the certifying body named before you enroll, test or take work.