ACAC Council-Certified Indoor Environment Consultant


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Other Indoor Environment Credentials

A Council-certified Indoor Environmental Consultant (CIEC) investigates indoor air quality problems. For example, a CIEC can identify mold and moisture issues during a commercial investigation or a home inspection. A CIEC has verified knowledge of three or more disciplines related to indoor air quality, including HVAC, building science, microbial issues, industrial hygiene, lead-based paint and asbestos.

Each CIEC has demonstrated at least eight years experience conducting field investigations in one or more of the following settings: offices and commercial buildings; industrial structures; government facilities; schools and public buildings; healthcare facilities; or home inspection.

The Indoor Air Quality Council launched the credential in 1999. In 2006, the Council discontinued membership services and focused exclusively on credential program. In 2008, the Council broadened its focus to other industries and changed its name to the American Council for Accredited Certification (ACAC). 

For healthy homes-related credentials, ACAC offers credentials in two broad categories: indoor environment and microbes. In the indoor environments category, ACAC offers five credentials:

Three cautions:

Contact information:


Hazard Control

Credential programs related to healthy homes but not assessment or hazard control.

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