2025 Building Energy Efficiency Standards (California Energy Code)

2025 Building Energy Efficiency Standards (California Energy Code)

The Warren-Alquist Act establishes the CEC as California’s primary energy policy and planning agency. Public Resources Code sections 25213, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25910 mandate and/or authorize that the CEC adopt rules and regulations, as necessary, to reduce the wasteful, uneconomic, inefficient, or unnecessary consumption of energy and water in new residential and new nonresidential buildings. One of the ways the CEC satisfies this requirement is through the Energy Code. The Energy Code includes the energy efficiency requirements applicable to newly constructed buildings and permitted additions and alterations to existing buildings. The CEC updates the Energy Code on a three-year cycle as part of the California Building Standards Code. The current project is the latest triennial update to the Energy Code. The proposed amendments, if adopted, would be incorporated into the 2025 edition of the Energy Code and become effective on January 1, 2026.

Alameda, Alpine, Amador, Butte, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humboldt, Imperial, Inyo, Kern, Kings, Lake, Lassen, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Modoc, Mono, Monterey, Napa, Nevada, Orange, Placer, Plumas, Riverside, Sacramento, San Benito, San Bernardino, San Diego, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Shasta, Sierra, Siskiyou, Solano, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Ventura, Yolo, Yuba

Statewide

California Air Resources Board (ARB), California Baldwin Hills Conservancy (BHC), California Coachella Valley Mountains Conservancy (CVMC), California Coastal Commission (CCC), California Department of Conservation (DOC), California Department of Corrections and Rehabilitation (CDCR), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Fish and Wildlife, Central Region 4 (CDFW), California Department of Fish and Wildlife, Habitat Conservation Planning (CDFW), California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Housing and Community Development (HCD), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of State Parks, Division of Boating and Waterways, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 1 (DOT), California Department of Transportation, District 10 (DOT), California Department of Transportation, District 11 (DOT), California Department of Transportation, District 12 (DOT), California Department of Transportation, District 2 (DOT), California Department of Transportation, District 3 (DOT), California Department of Transportation, District 4 (DOT), California Department of Transportation, District 5 (DOT), California Department of Transportation, District 6 (DOT), California Department of Transportation, District 7 (DOT), California Department of Transportation, District 8 (DOT), California Department of Transportation, District 9 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Energy Commission, California Fish and Game Commission (CDFGC), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Office of Statewide Health Planning and Development (OSHPD), California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Central Coast Region 3 (RWQCB), California Regional Water Quality Control Board, Central Valley Fresno Region 5 (RWQCB), California Regional Water Quality Control Board, Central Valley Redding Region 5 (RWQCB), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), California Regional Water Quality Control Board, Lahontan South Lake Tahoe Region 6 (RWQCB), California Regional Water Quality Control Board, Lahontan Victorville Region 6 (RWQCB), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California Regional Water Quality Control Board, North Coast Region 1 (RWQCB), California Regional Water Quality Control Board, San Diego Region 9 (RWQCB), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), California San Diego River Conservancy (SDRC), California San Joaquin River Conservancy (SJRC), California Santa Monica Mountains Conservancy (SMMC), California State Lands Commission (SLC), California Tahoe Conservancy, Central Valley Flood Protection Board, Colorado River Board, Delta Protection Commission, Delta Stewardship Council, Department of General Services (DGS), Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC), Santa Monica Bay Restoration, Sierra Nevada Conservancy, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, Tahoe Regional Planning Agency (TRPA)

Other (Building energy efficiency standards)

None - Statewide building energy efficiency standards

Air Quality, Cumulative Effects, Energy, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Noise, Public Services, Schools/Universities, Utilities/Service Systems