Cal. Ins. Code § 881
(a) The commissioner shall require the name or any changed name of every insurer (including reciprocal or interinsurance exchanges), every attorney in fact, every motor club, and every underwritten title company to be submitted to him or her by written application and approved by him or her before the name is used in this state for business purposes. If approved, the commissioner shall issue his or her official certificate approving the name, and when appropriate, reserving the name for the following time periods, which shall commence on the date of the approval: