Credential type: certification examination · verified on the issuer's site September 25, 2026 issuer page
Exam Domains
1 Psychrometry and Drying Theory30%
2 Drying Equipment, Airflow, and System Design25%
3 Moisture Measurement and Monitoring20%
4 Building Science, Assemblies, and Materials15%
5 Documentation and S500 Compliance10%
Exam Details
Question TypesMultiple Choice
FormatClosed-book multiple-choice exam taken after an approved instructor-led course. In-person certification only.
Online ProctoringAvailable
ID RequirementsGovernment-issued photo ID matching registration; proof of approved-course completion. IICRC registration number used for certification issuance.
RenewalRequired -- Maintained via Continuing Education Credits (CECs) — generally 4 CECs every 4 years per active certification — plus payment of the annual IICRC certification renewal fee. Lapsed certifications may require re-examination.
PrerequisitesYou must obtain the following before taking this certification: Water Restoration Technician (WRT)
Retake PolicyRetakes available; full exam fee and scheduling via Prometric/approved school per their policy.