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California's Energy Efficiency Standards for
Residential and Nonresidential Buildings
Title 24, Part 6, of the California Code of Regulations
The Energy Efficiency Standards for Residential and Nonresidential Buildings were established in 1978 in response to a legislative mandate to reduce California's energy consumption. The standards are updated periodically to allow consideration and possible incorporation of new energy efficiency technologies and methods.
Current Standards
2005 Standards - Went into effect October 1, 2005, and supersede the 2001 Standards. Projects that apply for a building permit on or after this date must comply with the 2005 Standards.
Adopted Amendments, Cool Roof Coatings Performance Requirements, Effective September 11, 2006.
2008 Standards
2008 Standards Rulemaking - The 2008 rulemaking is in progress. This page has the latest information.
California's building efficiency standards (along with those for energy efficient appliances) have saved more than $56 billion in electricity and natural gas costs since 1978. It is estimated the standards will save an additional $23 billion by 2013.
The current 2005 standards and the 2001 Standards may be downloaded from the Web pages listed above, or to obtain a hard copy, contact the Energy Commission's publications unit at 916-654-5200.
If you have questions about Title 24:
Energy Efficiency Hotline
E-mail: title24@energy.state.ca.us
Phone: 916-654-5106 or
Phone: 1-800-772-3300 (toll free in Calif.)