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Contractors Take Note: Title 24 Energy Code Requirements Have Changed!

The most recent changes to California's Building Energy Efficiency Standards, commonly known as Title 24 Requirements, which took effect on July 1, 2014, focus on performance-based, energy-efficient design and include requirements for a design team to complete a commissioning plan before building begins.  

The new standards use 25% less energy for lighting, heating, cooling, ventilation and water heating.  The new standards will also save 200 million gallons of water per year and avoid 170,500 tons of green house gas emissions per year.  

Changes to Lighting Requirements:  Residential and Non-Residential 

One of the biggest changes addresses the lighting requirements.  The new rules require buildings to have automatic scheduling and timed switch controls that turn lights off during daylight hours. Additionally, all lighting control systems with two or more components - in both residential and non-residential spaces - must meet the requirements of 2013 Title 24 standards, Section 110.9.  For further changes to Title 24 lighting requirements, check out the California Lighting Technology Center.  

Other Highlights of the New Standards

In addition to changes to the lighting standards, major changes include: 


  • Insulated hot water pipes
  • Improved window performance
  • "Solar ready roof" design 
  • Whole house fans to replace HVAC


  • Advanced lighting controls
  • High performance windows, sensors and controls
  • Efficient process equipment 
  • "Solor ready roof" design and cool roof technologies
  • Occupant-controlled smart thermostats

Local Ordinances Exceeding Title 24 Standards

Contractors should also take note that the cities of Glendale, Lancaster, Los Angeles and San Francisco have adopted local standards that are more stringent than the statewide Title 24 standards.  

For More Information: 

Additional Title 24 compliance information can be found here.  

Have Questions?

If you have questions or would like to discuss the legal ramifications of Title 24, please contact our Construction Practice Group.

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