Cal. Ins. Code § 11580.07
Except when required by a conditional sales vendor, no person or entity who is licensed pursuant to Chapter 5 (commencing with Section 1621) of Part 2 of Division 1 and who holds an appointment by, or transacts insurance with, an insurer which is admitted to issue a policy of automobile liability insurance, as described in Section 16054 of the Vehicle Code, or a motor vehicle liability policy, as described in Section 16450 of the Vehicle Code, or any policy or coverage described in Section 660, shall require any insured to purchase or maintain automobile collision coverage, as defined in Section 660, for the insured motor vehicle as a condition to the issuance or maintenance of comprehensive coverage for such motor vehicle, unless such policy requires the purchase of both such coverages.
This section shall apply only to those policies and coverages issued or renewed on or after the effective date of this section.
As used in this section, "comprehensive coverage" means coverage for loss or damage to the insured motor vehicle resulting from a cause other than collision or upset.
Ca. Ins. Code § 11580.07