IICRC

Definition

The Institute of Inspection Cleaning and Restoration Certification (IICRC) is a nonprofit organization that establishes global standards for the cleaning and restoration industry, including mold remediation. Founded in 1972, the IICRC develops consensus-based standards (like the widely adopted S520 for mold remediation), provides certification training, and accredits schools that teach these standards. While IICRC certification is voluntary in most states, it represents the industry's gold standard for technical competency and professional protocols.

Why It Matters

Hiring an IICRC-certified contractor provides assurance that the company follows evidence-based protocols rather than improvised methods. The IICRC S520 standard covers critical procedures: pre-remediation assessment, containment strategies, HEPA filtration requirements, PPE specifications, removal vs. cleaning decisions, and post-remediation verification. Contractors with IICRC credentials (like Applied Microbial Remediation Technician - AMRT) have completed classroom training and passed examinations on these protocols. For homeowners, IICRC certification serves as a baseline qualification—it doesn't guarantee quality work, but its absence is a red flag that the contractor may lack formal training in industry best practices.

How It's Used in Mold Work

Professional remediators reference IICRC S520 when developing remediation plans and justifying scope decisions to homeowners and insurance adjusters. The standard provides condition classifications (Condition 1, 2, or 3 based on contamination severity) that dictate appropriate response levels. For example, Condition 3 situations (like sewage backups or confirmed Stachybotrys) require full containment and HEPA filtration per S520, while Condition 1 might allow simpler cleaning methods. Many insurance policies require IICRC compliance for mold claims. Contractors maintain certification through continuing education, as IICRC credentials expire if not renewed with updated training. When vetting contractors, homeowners should ask for IICRC certification numbers and verify them on the IICRC website directory.