ARLINGTON, Va. — The Air Conditioning Contractors of America (ACCA) Educational Institute Standards Task Team announced that its updated ANSI/ACCA 12 QH Home Evaluation and Performance Improvement standard has been recognized by the American National Standards Institute (ANSI).

Drawing on a committee comprised of volunteers from mechanical contractors, testing and rating professionals, state and federal government representatives, allied associations, and other interested stakeholders, the prior 2011 ANSI-recognized standard was revised to include new procedures/approaches, streamline the instruction set, clarify language, and update references/citations.

The revised ACCA 12 QH – 2014 Standard treats the home as one system comprised of many sub-systems; improvements to one sub-system may impact other sub-systems. In identifying and implementing the improvements, attention is given to promote safe and healthy homes. This nationally approved standard identifies:

• What is included in an audit.

• Improvement opportunities that need to be assessed.

• How scopes of work are prioritized.

• How work is to be performed.

• What industry recognized procedures need to be followed.

• How improvement objectives are to be met.

Minimum requirements to evaluate a residence with regard to energy efficiency, occupant comfort, and IAQ are established. Improvement opportunities are presented to the homeowner so that they can select the improvements that meet their needs. The standard details the minimum requirements for the practitioners that effect the selected improvements, and the subsequent verification to ensure that the performed work is in compliance to industry standards.

Interested persons can download a free copy of ANSI/ACCA 12 QH – 2014, Home Evaluation and Performance Improvement, at Printed copies are available from the ACCA bookstore at

Publication date: 9/29/2014

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