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Accredited standards serve to develop common, industry-accepted language and terminology for procedures like mold remediation. The American National Standards Institute (ANSI) oversees the development of national consensus standards and verifies that the requirements for approval have been met, demonstrating a higher level of integrity and validity for those products. The IICRC is a standard developing organization, accredited through ANSI.

Accredited standards help drive consistent quality of work. While use of an American National Standard (ANS) is voluntary, some have been adopted as code or regulation by local, state, or federal authorities.

The ANSI/IICRC S520 Standard for Professional Mold Remediation is the only accredited mold remediation standard.

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