Read the United States Patent and Trademark Office official document.


The IAC2 certification is open to all members of the IAQ industry who serve to promote healthy indoor environments at residential and commercial properties and meet the IAC2 Certification requirements. The IAC2 Certified logo is a Registered U.S. trademark on the Principal Register protected by trademark and common law.

Registered: May 19, 2020

U.S. Cl.: B: CLASS B: Consulting services provided by home and building inspectors in the field of indoor air quality

Principal Register: The colors green, black and white are claimed as a feature of the mark.
The mark consists of a circular green and white background, upon which appears the term “IAC” in black followed by a subscript “2” in black, with the word “CERTIFIED” in black below “IAC”, with the foregoing terms between two black horizontal lines. Around all the foregoing is a black circular border, inside of which appears the wording “INTERNATIONAL ASSOCIATION OF CERTIFIED INDOOR AIR CONSULTANTS” in white.


Members can download the logo from the IAC2 Logos page, which is accessible from the My Account Dashboard. You must be logged in to download the logo.