Consult one of California's government webpages for authoritative information on state agencies and administrative law. Databases like Westlaw also offer easy online access to important texts like the California Code of Regulations.
Regulation citations include a title number, publication name, and section. Citations are formatted according to the applicable style manual (e.g. Bluebook or the California Style Manual).
The following three citations to the same regulation all provide enough information to find it.
Current, in-force regulations are found in the California Code of Regulations.
Proposed regulations are published in The California Regulatory Notice Register (Notice Register), sometimes called the "Z Register."