If you are planning a new HVAC installation in Riverside, CA, you may hear about HERS testing as part of the permitting and compliance process. HERS stands for Home Energy Rating System. While California updated the program in 2026, the field verification and diagnostic testing once handled under HERS now falls under the Energy Code Compliance (ECC) Program.
The goal remains straightforward: verify that required energy-efficiency measures and equipment are installed and functioning as intended. These checks help support code compliance and the expected performance of qualifying energy-efficiency features in a new home and HVAC work.