Code requirements and design intent are only achieved when a heating, ventilation, and air conditioning (HVAC) system functions as it was designed.

Mechanical Acceptance Testing (MAT) is a physical verification that new HVAC systems, replacements, and upgrades achieve energy efficiency and indoor air quality (IAQ) goals while meeting minimum code requirements. Inspectors can continue their educations and further their understanding of the California Title 24 MAT requirements created for the design professional, project owner, and authority having jurisdiction leadership by researching the resources below.