It has been a handful of years since I had my California CHL, but ... When I had mine (1990's and early 2000's), the basic restrictions applicable were denoted in the relevant CHL statutes, and the county sheriffs could specify any additional restrictions they deemed appropriate for their community. My CHL had those additional restrictions imprinted on the reverse of the CHL itself. Looks like the statutes still indicate this is the case.
Originally Posted by Mtnmanca
For starters, take a look at HandgunLaw.us/states/california.pdf. It'll indicate many of the relevant CA Penal Code statutes you'll need to be aware of. Many of the basic restrictions are listed here. Of course, the standard federal ones exist as well, including: no fed buildings, no restricted/secure areas of airports.
Then, head to the CA Penal Code, and call up those specific statutes to get the full picture.
Specifically, look at CA Penal Code 26200:
CA PC 26200. (a) A license issued pursuant to this article may include
any reasonable restrictions or conditions that the issuing authority
deems warranted, including restrictions as to the time, place,
manner, and circumstances under which the licensee may carry a
pistol, revolver, or other firearm capable of being concealed upon
(b) Any restrictions imposed pursuant to subdivision (a) shall be
indicated on any license issued.
Strong recommendation: Pick up a copy of the book by John Machtinger, How to Own a Gun and Stay Out of Jail (CA). It'll help make sense of the comparatively-confusing morass that is California law regarding firearms and the use-of-force.