Cal. Fin. Code § 1803
(a)
(b) If the commissioner finds the following with respect to an application by a foreign (other nation) bank for approval to establish an agency or branch office, the commissioner shall approve the application:
(7) In case the office is to be a branch office, that the foreign nation where the bank is domiciled permits banks organized under the laws of this state and national banks headquartered in this state to establish and maintain in those foreign nation offices substantially equivalent to agencies, offices substantially equivalent to branch offices, or wholly (except for directors’ qualifying shares) owned banks organized under the laws of the foreign nation.
If the commissioner finds otherwise, the commissioner shall deny the application.