All projects in California must meet Title 24-2013 requirements, and reduce their energy use by 10% or more compared to Title 24.
Once this requirement is met, projects in California may use the standard LEED for Homes v4 scoring approaches in the Energy and Atmosphere section, or they may elect to use the prescriptive pathway with some modifications that combine credits from the EA performance and prescriptive pathways in order to fully cover all major energy uses in housing.
Prescriptive pathway: Projects using Title 24-2013 must add EA credit Lighting and EA credit High-Efficiency Appliances. For EA credit Lighting Option 1 Indoor Lighting, projects can either:
- Follow rating system requirements
- Meet CAHPC lighting requirements
- Install 100% high-efficacy luminaries (as defined by Title 24).
To use the 100% high-efficacy luminaries approach, every room must have at least one hard-wired fixture.
Scoring in EA credit Annual Energy Use follows the adjusted point scale shown in the related resource "Title 24-2013 Point Scale for LEED Homes v4 Projects".