The California Energy Commission (CEC) uses a public process and a rulemaking to adopt changes to the Energy Code contained in the California Code of Regulations (CCR), Title 24, Part 6, and associated administrative regulations in Part 1 (collectively considered the Energy Code). The updated standards will be proposed for adoption in 2024 with an effective date of January 1, 2026. See public participation section below for more information. 

Software is provided by the California Energy Commission (CEC) for public review and testing. This software is not valid for compliance, is for research only, and is subject to change. There is currently no approved 2025 compliance software.

The CEC encourages public participation in its proceedings.  

To participate, you can attend the workshops 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 can propose an energy efficiency measure for consideration in current or future Energy Code updates. To document the proposed measure and cost-effectiveness, use the Building Energy Efficiency Measure Proposal Template. Samples of past proposals are available in the 2022 Energy Code docket or by request. 

The Public Advisor's Office can help anyone with questions about the proceedings. 

Sign up for the  Building Standards listserv  to keep up to date about ongoing activities. 

The investor-owned utilities hold stakeholder meetings to discuss their sponsored measure proposals. The CEC does not run those meetings, and participation in them is not required to participate in the CEC proceeding. 

Upcoming Events

June 9, 2023 | 10:00 AM - 05:00 PM
Remote Access Only
The California Energy Commission (CEC) will host the third in a series of workshops to discuss revisions to the staff proposed changes to the Field Verification & Diagnostic Testing (FV&DT) regulations in the Building Energy Efficiency Standards (Energy Code) primarily in Title 24, Part 1, section 10-103.3 published in October of 2022.


Building Energy Efficiency Standards - Title 24
Toll-free in California: 800-772-3300
Outside California: 916-654-5106


Building Energy Efficiency Standards