California's Energy Code, commonly known as Title 24, has been in place for decades, but we still answer questions on the topic almost every single day. Just what is it and what kind of effect does it have on your lighting?
As it's published in Section 6 of the California Code of Regulations, Title 24 is a broad set of requirements for “energy conservation, green design, construction and maintenance, fire and life safety, and accessibility” that apply to the “structural, mechanical, electrical, and plumbing systems” in a building. The code applies to all buildings in California, not just state-owned buildings.
California updates its energy code every three years. Construction projects with permit applications applied for on or after January 1, 2023 must follow the 2022 Energy Code. If a permit is applied for before then, buildings follow the 2019 Building Efficiency Standards.