The 2019 California Green Building Standards Code, known as CALGreen, establishes mandatory sustainable building practices for all new constructions in California, promoting environmental efficiency and public health.

The 2022 California Green Building Standards Code, part of Title 24, Part 11, establishes comprehensive guidelines for sustainable building practices across California. Updated triennially, this code sets minimum requirements for environmental performance in construction, emphasizing energy efficiency, material conservation, and indoor air quality.