C&S Energy Code Support

Personalized Support Services 

California’s Building Energy Efficiency Standards (Title 24, Part 6) set building guidelines that promote energy efficiency and cost effectiveness. These standards vary each climate zone, and I-REN is here to personalize code support for all its jurisdictions.  

  • Specific code questions? Ask an Energy Code Question and one of our Energy Code Experts will provide a personalized response within two business days. Fill out the form here.
  • Starting a project? Our Energy Code Experts put together Permit Guides with checklists to keep you code compliant.

Stay informed! Join the I-REN mailing list to stay up to date on I-REN Codes & Standards. 

Energy Code Permit Guides

I-REN's Energy Code Experts are here to help guide you through the permitting process to meet Title 24 requirements. 

I-REN's quick permit guides outline energy code requirements. All permit guides include a checklist of what you will need during the permitting process and have examples of which code requirements are applicable to your project. 

Download our permit guides today to ensure your project meets all code requirements: 

Looking for something specific? Request a customized permit guide here or ask our Energy Code Experts any questions you may have. 

Cost Effectiveness Calculator


The Cost-Effectiveness Explorer is a free resource to help California local governments and stakeholders develop energy policies for buildings. It was developed by Local Energy Codes.

Start exploring here!