IMPORTANT NOTICE: The City of Cupertino has adopted the 2022 California Code of Regulations, Title 24 with certain amendments. These codes and amendments are effective on January 1, 2023. All projects submitted after January 1, 2023, must comply with the 2022 California Codes of Regulations and the City of Cupertino amendments. All projects under the 2019 California Codes of Regulations and amendments must be submitted prior to December 22, 2022. 

The Current Codes adopted, as amended by the City of Cupertino, effective January 1, 2023, are: 

2022 California Administrative Code
2022 California Building Code, Volumes 1 & 2
2022 California Residential Code
2022 California Electrical Code
2022 California Mechanical Code
2022 California Plumbing Code
2022 California Energy Code
2022 California Historical Building Code
2022 California Fire Code
2022 California Green Building Standards Code
2022 California Referenced Standards Code

The 2022 triennial edition of the California Code of Regulations (CCR), Title 24 (California Building Standards Code) applies to all occupancies that applied for a building permit on or after January 1, 2023, and remains in effect until the effective date of the 2025 triennial edition.

The California Building Standards Commission website at https://www.dgs.ca.gov/BSC has information on where the codes can be purchased and Parts 6 and 11 can be downloaded for free. Please visit https://www.dgs.ca.gov/BSC/Codes for website links where other parts of the codes can be viewed online.

There are 12 parts to Title 24 and the applicable parts for most Building Division permit applications are listed below:

• Part 2: The 2022 California Building Code (CBC) is based on the 2021 IBC, but includes numerous State of California amendments.
• Part 2.5: The 2022 California Residential Code (CRC) is based on the 2021 IRC, but includes numerous State of California amendments and does not include the electrical, energy, mechanical, or, plumbing portions of the IRC, and instead parts 3 through 6 of Title 24 as listed below apply.
• Part 3: The 2022 California Electrical Code (CEC) is based on the 2020 NEC with State of California amendments.
• Part 4: The 2022 California Mechanical Code (CMC) is based on the 2021 UMC with State of California amendments.
• Part 5: The 2022 California Plumbing Code (CPC) is based on the 2021 UPC with State of California amendments.
• Part 6: The 2022 California Energy Code is currently based on the 2021 Building Energy Efficiency Standards, and please visit the California Energy Commission website where additional information can be found and Compliance manuals can be downloaded for free.
• Part 9: The 2022 California Fire Code (CFC) is based on the 2021 IFC with State of California amendments. 
• Part 11: The 2022 California Green Building Standards Code (CALGreen Code) is known as the California Green Building Standards Code, and it is intended that it shall also be known as the CALGreen Code. Resources are available here: https://www.dgs.ca.gov/BSC/CALGreen

This document tracks the History of Cupertino Code Adoptions.

2019 California Codes Significant Changes:

2019 California Building Code

2019 California Residential Code

2019 California Mechanical Code

2019 California Plumbing Code

2019 California Electrical Code

2019 California Green Building Code

2019 California Energy Code