Please reference Information Bulletin 2019-03 regarding the Effective Date and Application of the 2019 California Building Standards Code. As a result of the 2018 Triennial Code Adoption Cycle, the 2019 CBSC has been approved and issued by the Commission. The 2019 California Building Standards Code (CBSC), California Code of Regulations (CCR), Title 24, will be effective on January 1, 2020.
All new plans and quality control manuals submitted to the Department or to Department-approved Design Approval Agencies on or after January 1, 2020, (including new units, projects, or developments beginning construction after January 1, 2020) shall be written, designed, and/or constructed in accordance with the 2019 CBSC and the Department regulations if such designs are intended to be utilized for factory-built housing that are sold or offered for sale in California. Note that the 2019 California Building Code and 2019 California Residential Code include clarification in section 1.1.9 (exception) that factory-built housing plans remain valid for a period of 36 months from the date of plan approval.
The 2019 CBSC applies to all buildings and structures with a permit application date on or after January 1, 2020. The permit application date is established by the local government; interested parties should contact the applicable building department or enforcement agency to determine how the permit application date is established in a specific jurisdiction.
For additional information, please reference Information Bulletin 2019-03.