Notices of proposed regulations are published in the weekly California Regulatory Notice Register (nicknamed the Notice Register or Z Register), which is free on the website of the Office of Administrative Law:
Additionally, information on proposed regulations is published on Westlaw, Bloomberg, Lexis, and Nexis Uni. On each database, look for a bell icon to set up email alerts notifying you of new regulations that match your keyword search.
Westlaw and Bloomberg provide the following sources for tracking pending California regulations:
The Bulletin is a supplement to the Notice Register, published by Barclays, the private publisher that took over publication of California regulations in 1990. It primarily provides excerpts from the Notice Register.