Mold Remediation Specialist (MRS) — Requirements & Free Practice
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Mold Remediation Specialist (MRS)
Licensing authority: Institute of Inspection Cleaning and Restoration Certification
Initial by examination
- Approval And Fees
- Complete application and non-refundable/non-transferable $150 application fee; IICRC approval precedes $300 examination payment and access. Processing normally takes up to ten business days at application and examination-registration stages; do not assume immediate access.
- Award
- After all certification requirements are fulfilled, IICRC issues a nontransferable individual certificate. Local governmental practice/business requirements must be checked separately; no state adoption is established here.
- Delivery
- Year-round appointment selection published as 24/7/365 via IICRC online portal and proctor scheduler; required compatible computer, webcam, microphone, private testing area, identity verification and live proctor. Published delivery does not guarantee a particular seat between 2026-11-25 and 2027-02-01.
- Documentation
- Submit English-language job evidence, employer/company, role, supervisor or HR contact and employment dates; self-employed applicants submit Articles of Incorporation. Supply valid current government-issued photo ID, signed Code of Ethics and Candidate Agreement; submit accommodation request and supporting documentation when needed. Eligibility evidence is subject to audit.
- Eligibility
- At least one year of verifiable mold remediation field experience; no course, training or other certification prerequisite. Supervisory/inspection work qualifies only where the applicant personally performed remediation. No minimum job count; oldest job start and most recent job end must span at least 12 months.
- Eligibility Window
- Pay, schedule and pass within 90 days of application approval; initial attempt plus at most one paid $200 retest within that same period. After a failed second attempt, wait one year from the last examination date to reapply. A personal deadline is not the examination-version retirement date.
- Examination
- One online remotely proctored closed-book multiple-choice examination in US English/Imperial Measurements; pass at 79% or higher. Hands-on experience is a prerequisite, not an added practical exam or required approved course.
Mold Remediation Specialist (MRS) Examination
- Provider
- IICRC; remote proctoring through Meazure Learning (ProctorU)
- Format
- Online, remotely proctored, closed-book multiple-choice examination in US English with Imperial Measurements; appointments published as 24/7/365 within the approved candidate's 90-day eligibility period.
- Exam questions
- Total questions: 100; Scored questions: 100.
- Time limit
- 2 hours
- Passing score
- 79%
- Exam fee
- $150 application fee and $300 examination fee; non-refundable and non-transferable. One optional retest costs $200; proctor scheduling charges may apply.
Examination outline
Safety and Health (23%)
- Respirators and Filters
- Personal Protective Equipment (PPE)
- Hazards, Working Conditions, and Emergency Response
Project Documentation (18%)
- Documentation Processes
- Legal Requirements, Disclosures, and Informed Consent
- Limitations, Complexities, Complications, and Conflicts
Contaminant Control (21%)
- Condition Assessment
- Containment
- Air Filtration Devices (AFD)
- Moisture Control
- HVAC
Contaminant Removal (26%)
- Salvage and Removal of Structures
- Contaminant Removal Tools and Procedures
- Cleaning Methods, Controls, and Equipment
- Cleaning Contents
- Post Remediation Verification
Contaminant Prevention (12%)
- Prevention
Examination sources
- MRS Candidate Handbook
p. 30, Appendix A, controlling scope statement; full outline pp. 30-37
- MRS Candidate Handbook
p. 9, Examination Overview, full Content Domain / Weighting / Number of Items table
- MRS Candidate Handbook
p. 27, Exam Development, common scope of examination forms
- MRS Candidate Handbook
p. 9, Core Resources, status of reference literature
- IICRC MRS program
Step 3, handbook and outline adoption
- MRS Candidate Handbook
p. 9, Examination Overview, assessment format
- MRS Candidate Handbook
p. 13, Examination policy, closed-book rule
- IICRC MRS FAQs
MRS Examination, examination length
- MRS Candidate Handbook
p. 7, Application Process, approval and examination window
- MRS Candidate Handbook
p. 11, Scheduling the Examination, appointment availability
- IICRC MRS FAQs
MRS Examination, in-person or online
- IICRC MRS program
Step 2, application and examination fees
- IICRC MRS program
Step 2, application review and examination fee