CALGreen is California’s first green building code and first in the nation state-mandated green building code. It is formally known as the California Green Building Standards Code - California Code of Regulations, Title 24, part 11.
The purpose of CALGreen is to improve the health, safety, and general welfare of the public through enhanced design and construction of buildings. CALGreen encourages sustainable construction practices that use building concepts which reduce negative impacts and increase positive environmental impacts. CALGreen addresses the five divisions of building construction:
- Planning and design
- Energy efficiency
- Water efficiency and conservation
- Material conservation and resource efficiency
- Environmental quality