What changed in the 2025 California Energy Code?

The 2025 California Energy Code introduces updates to energy-efficiency requirements and transitions the HERS field verification program to the Energy Code Compliance (ECC) Program, effective January 1, 2026.

What is the ECC Program?

The Energy Code Compliance (ECC) Program replaces the HERS Program for field verification and diagnostic testing required under California's Energy Code while continuing the same compliance function.

Does every project require HERS or ECC verification?

No. Field verification and diagnostic testing are only required when specified by the project's approved Title 24 compliance documentation and applicable Energy Code provisions.

Who performs HERS or ECC verification?

Verification is performed by certified HERS Raters or, under the 2025 Energy Code, certified ECC Raters working through approved providers.

How can GPRO Energy help?

GPRO Energy provides professional field verification and diagnostic testing services to help builders, contractors, and homeowners meet California Title 24 Energy Code requirements.