The Building Standard Code (BSC) is compiled by the California Building Standards Commission, an independent commission under the Consumer Services Agency. The BSC is published every three years and is a compilation of the building standards that: (1) "have been adopted by state agencies without change from building standards contained in national model codes," (2) "have been adopted and adapted from the national model code standards to meet California conditions," (3) have been "authorized by the California legislature, that constitute extensive additions not covered by the model codes that have been adopted to address particular California concerns."
The BSC is published as Title 24 Building Standards Code (CCR, Title 24). However, it is not published within Barclay's Official California Code of Regulations.
Guide to Title 24: Based on the 2019 edition of the California Building Standards Code (2019) by Calif. Building Standards Commission
Building Codes and Regulatory Resources: Regulatory Resources Research Guide (U.C. Berkeley Libr.): Provides extensive lists of primary and secondary sources on this topic.
Research Guide: Building Codes & Standards (Design Institute of San Diego): Lists treatises on building codes that impact interior designers, includes publications on accessibility.