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The Efficiency and Renewable Energy Division's Blueprint is published on a regular basis to provide updates and clarifications regarding California's Title 24, Part 6 Building Energy Efficiency Standards for Residential and Nonresidential Buildings. The Blueprint reaches energy officials, builders, energy consultants, contractors and other professionals with a need to know about the Energy Standards. California's Energy Efficiency Standards and Appliance Efficiency Standards are considered to be the most leading-edge and stringent in the world. The Blueprint reaches approximately 4500 plus subscribers. It is now published online only.


  • Energy Upgrade California
  • Approval Procedure for Weigh-In Method
  • Careers at the California Energy Commission
Issue # 99
On Line: April 7, 2011
PDF File
(4 pages 1.5 megabytes)
  • Residential Radiant Barrier Compliance for the 2008 Building Energy Efficiency Standards
  • Efficiency Requirements for Water Chilling Packages: Clarification of Table 112-D
  • Guidelines for HERS Compliance Documentation Registered on or After October 1, 2010
Issue # 98
On Line: December 29, 2010
PDF File
(4 pages 1.5 megabytes)
HERS booklet, duct sealing letter, refrigerant charge verification, and careers at the Energy Commission
Issue # 97
On Line: November 4, 2010
PDF File
(4 pages 1.6 megabytes)
Electronic Forms, Indoor Ventilation Requirements, CABEC Exams, Mercury Thermostat Collection, and More
Issue # 96
On Line: July 22, 2010
PDF File
(5 pages 1.4 megabytes)
Cool Roof Requirements, Alternate Charge Measurement Procedure Clarification, and CSLB Enforcement Efforts
Issue # 95
On Line: June 3, 2010
PDF File
(6 pages 934 kb)
HVAC Updates for the 2008 Standards, Energy Education Center, and More
Issue # 94
On Line: April 1, 2010
PDF File
(8 pages 1.5 megabytes)
ASHRAE 62.2 Residential Indoor Air Quality under the 2008 Building Energy Efficiency Standards
Issue # 93
On Line: January 6, 2010
PDF File
(4 pages 1.3 megabytes)
Lighting Requirements for the 2008 Building Energy Efficiency Standards
Issue # 92
On Line: November 19, 2009
PDF File
(4 pages 1.1 megabytes)
Date Change for 2008 Energy Standards to January 1, 2010
Issue # 91
On Line: August 5, 2009
PDF File
(8 pages 1.5 megabytes)
New Standards Take Effect August 1st, 2009
Issue # 90

Note: Effective date has changed to January 1st, 2010.
See issue # 91 of the Blueprint.

On Line: February 18, 2009
PDF File
(1 pages, 564 kilobytes)
2008 Standards Become Effective July 1st, 2009
Issue # 89
On Line: October 10, 2008

Note: Effective date has changed to January 1st, 2010.
See issue # 91 of the Blueprint.
PDF File
(4 pages, 1.2 megabytes)
Historic Buildings / Seeking Excellence
Issue # 88
On Line: April 6, 2007
PDF File
(12 pages, 1.3 megabytes)
Incorporating Title 24 On To Your Plans
Issue # 87
On Line: January 30, 2007
PDF File
(4 pages, 381 kilobytes)
Cool Roof Update
Issue # 86
On Line: December 14, 2006
REVISED: January 17, 2007
PDF File
(8 pages, 1.7 megabytes)
Builder Energy Code Training
Issue # 85
On Line: August 4, 2006
PDF File
(4 pages, 805 kilobytes)
Special Bulletin - SEER 13, Federal Air Conditioner Standards
Issue # 84
On Line: March 6, 2006
PDF File
(2 pages, 460 kilobytes)
Special Bulletin - Q&A on Cool Roofs
Issue # 83
Publication # CEC-400-2005-053
On Line: December 19, 2005
PDF File
(12 pages, 1.4 megabytes)
Special Bulletin - New Standards & Master Plans
Issue # 82
Publication # CEC-400-2005-050
On Line: September 30, 2005
PDF File
(1 page, 66 kilobytes)
Special Bulletin - Energy Commission Releases Letter to Homeowners on New Duct Sealing Requirements for HVAC Changeouts
Issue # 81
Publication # CEC-400-2005-049
On Line: August 19, 2005
PDF File
(4 pages, 662 kilobytes)
Buried Ducts Special Bulletin
Issue # 80
Publication # CEC-400-2005-048
On Line: August 3, 2005
PDF File
(6 pages, 1.7 MB - note file size!)
July 29, 2005
Issue # 79
Publication # CEC-400-2005-047
On Line: July 27, 2005
PDF File
(16 pages, 2.3 MB - note file size!)
Change-Out Special Bulletin
Issue # 78
Publication # CEC-400-2005-046
On Line: July 20, 2005
PDF File
(6 pages, 717 kb)
Winter 2004-05
Issue # 77
Publication # CEC-400-2005-004
On Line: February 10, 2005
PDF File
(13 pages, 824 kb)

Previous versions of the Blueprint are available on our Archive website. Older editions may not reflect current standards.