California Energy Code

The code includes energy conservation standards applicable to most buildings throughout California.

[3] The three general parts, which include all the responsibilities and criteria of the standards, are: All buildings must follow the mandatory requirements.

These parts are designed to accomplish the following: Standards vary based on climate zone.

[5] It focuses on such areas such as residential photovoltaic systems, thermal envelope standards and non-residential lighting requirements.

[7] The 2019 Code added photovoltaic system requirements for low-rise residential buildings.

Climate zones in California