The Home Energy Rating System (HERS) Program consists of HERS Providers and HERS Raters. All HERS Providers are approved by the California Energy Commission to provide training, certification, and oversight of HERS Raters. HERS raters conduct Field Verification and Diagnostic Testing (FV and DT) services to confirm compliance with the Building Energy Efficiency Standards. This process ensures correct installation and proper function of specific building features and equipment, which have been prone to incorrect installation in the past.


Building Energy Efficiency Standards - Title 24
Toll-free in California: 800-772-3300