2025 Building Energy Efficiency Standards

Protection of the environment (TBT); Cost saving and productivity enhancement (TBT)

Energy efficiency; Environmental protection (ICS code(s): 13.020); Air quality (ICS code(s): 13.040); Energy efficiency. Energy conservation in general (ICS code(s): 27.015); Installations in buildings (ICS code(s): 91.140)

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13.040 - Air quality; 91.140 - Installations in buildings; 13.040 - Air quality; 27.015 - Energy efficiency. Energy conservation in general; 27.015 - Energy efficiency. Energy conservation in general; 91.140 - Installations in buildings

Resolution No: 24-0911-07 – This document is the signed resolution documenting the approval and adoption of the 2025 amendments to the Building Energy Efficiency Standards and associated materials.The Building Energy Efficiency Standards apply to residential, non-residential, and hotel and motel buildings. The standards are in Part 6 (also known as the “California Energy Code” or “Energy Code”) and associated administrative regulations in Part 1Chapter 10, of Title 24 of the California Code of Regulations (CCR). The Building Energy Efficiency Standards also include the Reference Appendices. The revised standards are called the 2025 Building Energy Efficiency Standards (2025 Energy Code), and include the comprehensive regulations, including Parts 1 and 6 and the Reference Appendices, as noticed on 13 June 2024 (notified in G/TBT/N/USA/1336/Rev.1/Add.1) and updated with amended provisions noticed on 22 August 2024 for an additional 15-day public comment period (notified in G/TBT/N/USA/1336/Rev.1/Add.3), and as further revised by this Resolution (the Final Proposed Express Terms), including the errata and provisions the California Energy Commission (CEC) declines to adopt, as identified in Appendix A. Following approval from the California Building Standards Commission (CBSC), the 2025 Energy Code will go into effect on 1 January 2026.2025 Energy Code Rulemaking Docket Log 24 -BSTD-01:_x000D_ https://efiling.energy.ca.gov/Lists/DocketLog.aspx?docketnumber=24-BSTD-01

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