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2025 Building Energy Efficiency Standards and Compliance requirements
Implementation Date: January 1, 2026
Any projects that apply for a permit on or after this date will be subject to the 2025 Energy Code requirements
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The Impact of the 2025 Title 24 Standards on energy calculation process |
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CF-1R registration
• New metric "Long-term System Cost" (LSC) will be used for compliance starting 2026
• Terminology Change: “HERS [ Home Energy Rating Systems ]” is now “ECC [ Energy Code Compliance Program ] "
• The California Energy Commission requires any Title 24 report, that are subject to ECC (Energy Code Compliance Program) testing, to have the CF-1R [ energy compliance certificate] registered with an approved ECC provider.
• If your project has any measures that require testing, the CF-1R form must be registered.
What is the process for CF-1R registration?
1. For registration with ECC provider, prepared Title 24 Reports [ forms CF1R ] need to be uploaded to the ECC provider's web site:
CHEERS
2. The Documentation Author (we) and Project Designer(s) ( can be Owner, Builder, etc.- click for details) sign energy report(s) digitally on the ECC provider's web site - please, establish an account with CHEERS (free of charge):
- Home Owners - Home Owner account ( "owner-builder" - for new construction, "owner installer" - for all other )
- All other (Architects, Designers, Builders) - appropriate account [ if no licence - "energy consultant or a designer" ]
Who signs energy compliance documents?
• The documentation author (we) and responsible person (client) must sign the Energy Compliance Certificate(s) [ Title 24 energy report's form(s) CF1R ].
Please, see California Energy Commission (CEC) Blueprint for details.
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Garages and Basements
Unconditioned attached garages and basements are included in Energy calculation according 2025 Title 24 Standards. Please, provide dimensions. |
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Standard Building Design 2025
CEC introduced new Standard Building Design [please, check for new requirements]:
- for Single Family: Single-Family Standard Building Design - 2025 [ Table 150.1-A ]
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Standards-2025 Residential MANDATORY MEASURES SUMMARY / former MF-1R Form /:
2025 Low-Rise Residential Mandatory |
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Standards-2025 Glossary
2025 Glossary |
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