C-46 Solar (2023-04-01)

Updated every three years, the California Electrical Code (CEC)—based on the 2023 NEC® with California amendments—helps contractors, engineers, electricians, inspectors, and safety officials protect people and property from electrical hazards.

It covers installation requirements for electrical conductors, equipment, raceways, signaling and communications systems, and optical fiber cables.

Includes free state updates and supplements.
Effective: January 1, 2026.

This book contains the most current information for safety and compliance in California’s construction industry.

The California Building Code (CBC) sets minimum standards for building design, construction, fire and life safety, structural safety, and accessibility. It regulates materials, occupancy, location, and maintenance to protect health, safety, and property. Matrix Adoption Tables at the start of each chapter show which state agencies adopt specific sections.

This 2-volume set is fully integrated with the 2024 International Building Code® and includes free updates.
Effective: January 1, 2026.

The California Energy Commission is providing this guide as an information resource to those installing photovoltaic (PV) systems under the Emerging Renewable Buy down Program. This is the first published draft of this guide and represents the current state-of-the-art in PV system installation. Revisions will be made to the document as necessary to address suggestions made by users of the guide. If anyone has suggestions on how to make this guide more useful, please do not hesitate to send those suggestions to the California Energy Commission. We hope that this guide is a worthwhile addition to the resources available for installers and look forward to your constructive comments for continued improvements.

The California Fire Code (CFC) provides regulations to protect life and property from fire, explosions, hazardous materials, and unsafe building conditions. It also includes provisions to support emergency responders and is referenced throughout Title 24.

This fully integrated code is based on the 2024 International Fire Code® and includes free state updates and supplements.
Effective: January 1, 2026.

The California Mechanical Code (CMC) sets minimum standards for the design, installation, and operation of mechanical systems, including heating, cooling, ventilation, refrigeration, and other heat-producing equipment, to protect health, safety, and property.

This fully integrated code is based on the 2024 Uniform Mechanical Code® and includes free state updates and supplements.
Effective: January 1, 2026.

The California Plumbing Code (CPC) sets minimum standards for the design, installation, and maintenance of plumbing systems to protect health, safety, and property. It regulates materials, construction, and system performance for all plumbing installations.

This fully integrated code is based on the 2024 Uniform Plumbing Code® and includes free state updates and supplements.
Effective: January 1, 2026.