The IICRC WRT — Water Damage Restoration Technician — certification is the starting credential of the water damage restoration track in the Institute of Inspection Cleaning and Restoration Certification’s certification system.
There are no prerequisites: you take a WRT course at an IICRC-approved school, pass the written exam ($80 in US pricing, 75% to pass), and the certification is issued to you personally.
It is also the prerequisite for the ASD, the AMRT and the Master Water Restorer track.
What is WRT?
WRT stands for Water Damage Restoration Technician.
It is the foundational water restoration credential in the IICRC’s certification system, and the name the IICRC’s own page uses for it is Water Damage Restoration Technician (WRT).
The naming is not perfectly consistent across the IICRC’s site: its ASD, AMRT and CDS pages list their prerequisite as Water Restoration Technician — the same WRT under a shortened name.
The body behind the credential is the Institute of Inspection Cleaning and Restoration Certification, a non-profit certifying body that says it counts more than 49,000 active Certified Technicians and more than 6,500 Certified Firms worldwide.
The IICRC is a certifying body, not a school: it owns no schools and keeps no instructors on staff, and instead approves independent schools and instructors that meet its criteria.
That split matters for how you actually get certified.
To become IICRC certified, a person attends an IICRC-approved course, passes the written examination and documents skills in the subject — the school teaches, the IICRC tests and issues the credential.
Two structural points shape the rest of this page.
First, the WRT has no prerequisites, so nothing has to come before it — a brand-new tech can sit it as a first credential.
Second, the certification belongs to the individual technician, not the employer — it stays with you when you change companies.
WRT is a credential for the water mitigation role, not the role itself.
The water mitigation technician hub covers the job: what a tech does on a loss, the work settings and where the career leads.
What topics does WRT certify?
The IICRC’s own WRT page lists what someone holding the certification can do, and it is worth reading as the honest boundary of the credential.
IICRC says WRT holders can handle a residential water loss, explain to an adjuster the proper procedures and the difference between a Category 2 and a Category 3 water loss, and adjust drying plans based on the science of drying.
- Handling a residential water loss — the IICRC’s own summary of the job scale the credential prepares a tech for.
- Explaining Category 2 vs Category 3 water to an adjuster — the category distinction the IICRC’s own page names for adjuster conversations.
- Adjusting drying plans based on the science of drying — the readings-and-adjustments loop, which is where the drying science behind WRT comes in.
As a course description, the IICRC says the WRT covers water damage effects and drying techniques, including identifying and changing drying plans based on the Science of Drying.
What the WRT’s scope leaves out is just as useful to know.
The capability list above does not include mold and sewage remediation technique.
That is the AMRT’s subject: the Applied Microbial Remediation Technician course is the one the IICRC describes as covering mold and sewage remediation techniques.
Its audience is people in property management, property restoration and related professions.
And because the IICRC is a non-profit certifying body rather than a government agency, an IICRC certification is an industry credential, not a government license.
The credential also sits inside a standards framework worth knowing by name.
The IICRC’s reference standard for the work is ANSI/IICRC S500, the standard for professional water damage restoration — currently the Fifth Edition, published in 2021, with a consensus body revising it.
The IICRC describes its ANSI standards as voluntary consensus standards accepted as the industry’s standard of care.
Credential and standard are different things: the WRT certifies a person, while the S500 describes recommended practice for the work.
How long is the course and exam?
The WRT course runs 3 days and 19 hours, not counting exam time, lunch and breaks, per the IICRC’s live-stream course listing.
For scale: IICRC certification classes run from one to five days depending on the course, which puts the WRT in the middle of the range.
You have two ways to sit it.
The IICRC offers the WRT live-stream and in person, and in Spanish.
The live-stream option is not a self-paced video course — IICRC’s online certification means classes taught in real time by IICRC Approved Instructors, with attendance taken daily and missing any day forfeiting exam eligibility — and live-stream classes are capped at 20 people.
The exam follows the class.
In-person students take it on the last day of class; live-stream students take it through the IICRC’s Online Exam Portal within 45 days of the last day of the course.
It is a closed-book exam with a 2.5-hour time limit, per the IICRC’s exam time-limit sheet revised in May 2021.
The money is split across two parties.
The exam fee is $80 in US pricing, the same for the initial exam and each retest, and for live-stream classes the IICRC has students register and pay the certification exam fee separately through their IICRC account.
Course tuition is the school’s side — classes run through independent IICRC-approved schools, and the IICRC’s office does not recommend specific instructors or schools, so compare listings on the IICRC’s course locator before you book.
The pass mark on standard IICRC certification exams is 75%.
A candidate who fails gets two retests, and each retest must be registered and completed within 45 days of the previous attempt’s scoring date.
The IICRC allows three attempts in total — the initial exam plus two retests — and after a second failed retest the candidate re-enrolls in the course.
One gap to know about: our research did not find a question count published on the IICRC’s pages, and the figures training companies advertise conflict with each other.
Ignore any specific count you see, and take exam-format questions to the IICRC or your instructor.
And after you pass, the certificate is not instant: the IICRC says certification processing takes 4–6 weeks from exam completion, and mailing it adds another 7–10 business days.
Confirm course and exam details with the IICRC
What does WRT unlock (ASD, AMRT, Journeyman)?
Three IICRC credentials list the WRT as their entry requirement, and a Master designation sits at the end of the chain.
- ASD — Applied Structural Drying Technician. Requires the WRT first, and unlike the WRT it is in-person only, with no live-stream option. Our research found no published ASD course length on the IICRC’s public pages, so treat any figure you see advertised with caution.
- AMRT — Applied Microbial Remediation Technician. Requires the WRT first, runs as a 4-day course, and is in-person only. It covers mold and sewage remediation techniques for people in property management, property restoration and related professions.
- CDS — Commercial Drying Specialist. Also requires the WRT, runs 4.5 days / 32 hours excluding exam, lunch and breaks, and covers commercial, industrial, institutional and complex residential drying. It is offered live-stream as well as in person.
The longer game is the Master Water Restorer designation.
The IICRC’s three Master designations — Master Water Restorer, Master Fire and Smoke Restorer and Master Textile Cleaner — each have an intermediate Journeyman level, and the WRT is required for the Master Water Restorer.
The Master Water Restorer path: CCT (or CCMT) plus RRT plus WRT, then at least 12 months certified for Journeyman Water Restorer (JWR), then AMRT plus HST plus ASD with at least three consecutive years as an IICRC Certified Technician.
Masters are rare enough that the IICRC publishes the number: only 3.7% of its constituents hold a Master designation.
Master holders also renew on a faster continuing-education cycle — 14 CECs every two years, against the four-year cycle regular technicians follow.
Do employers require WRT before hiring?
The published evidence on the hiring question is thin, and it helps to know exactly what is and is not established.
Our research did not find a law that requires a water mitigation technician to hold the WRT.
We also found no published figure for the share of restoration job postings that ask for the credential, or for a pay premium attached to holding it.
Whether the WRT matters for a given opening depends on the employer, franchisor or insurance program behind it — read the postings you are applying to and ask the question directly in the interview.
Two verifiable points still matter for your job search.
The certification is yours, not your employer’s — IICRC certifications belong to the individual technician, so they stay with you when you move between companies.
And the insurance-program pages we checked publish no requirement checklist you can plan around: Sedgwick’s public page for its managed repair network, for example, calls its network certified mitigation and damage restoration contractors without listing specific IICRC requirements.
For a new tech the practical reading is simple: the WRT is the credential you can earn first, because nothing precedes it, and it is the named prerequisite for the credentials that specialize the water track.
Whether a company pays for the course is its own decision — ask in the interview, and check whether certification costs are reimbursed once you are on payroll.
When you are ready, browse water mitigation technician jobs on this board.
Career information, not licensing, legal, insurance, health, safety or tax advice. The certification details on this page come from IICRC pages read in October 2026 — confirm current requirements with the IICRC and your chosen approved school.