ACCA 5 QI contains minimum requirements for properly designing, installing, testing, and commissioning HVAC installations for residential and light commercial applications. Developed by a broad coalition of industry stakeholders, the standard identifies consensus requirements associated with quality installations, acceptable procedures for measuring or verifying the attainment of those requirements, and acceptable forms of documentation to show compliance with the requirements.

A public review form for comments with a link to the above standard has been posted on the ACCA website.