The Green Building Energy Efficiency Standards contained in Appendices A4.2 and A5.2 of the California Code of Regulation (CCR), Title 24, Part 11 (CALGreen) include voluntary energy efficiency requirements for newly constructed buildings, and additions and alterations to existing buildings. The CEC updates the voluntary residential and nonresidential provisions every three years alongside the rest of the California Building Standards Code (Title 24, Parts 1 and 6).
2025 Timeline
The CEC encourages public participation in its proceedings.
To participate, you can attend the workshop and provide verbal comments to the record. Written comments can be submitted to the rulemaking docket. Instructions for submitting comments can be found on workshop notices.
The Public Advisor’s Office can help anyone with questions about the proceeding.
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California Green Building Standards Code (CALGreen)