Cal. Welf. and Inst. Code § 14124.79
In the event that the beneficiary, his guardian, conservator, personal representative, estate or survivors or any of them brings an action against the third person who may be liable for the injury, notice of institution of legal proceedings, notice of settlement and all other notices required by this code shall be given to the director in Sacramento except in cases where the director specifies that notice shall be given to the Attorney General. All such notices shall be given by insurance carriers, as described in Section 14124.70, having liability for the beneficiary's claim, and by the attorney retained to assert the beneficiary's claim, or by the injured party beneficiary, his guardian, conservator, personal representative, estate or survivors, if no attorney is retained.
Ca. Welf. and Inst. Code § 14124.79