California Code, Financial Code - FIN § 1078

(a) A bank may close or discontinue the operation of any branch office if, before the closing or discontinuance, (1) the bank files with the commissioner a notice containing the information in subdivision (b), and (2) the commissioner within 60 days after the filing of the notice or any longer period to which the bank consents, filing of the notice or any longer period to which the bank consents, either (A) issues a written statement not objecting to the notice, or (B) does not issue a written objection to the notice.

(c) For purposes of subdivision (a), a notice is deemed to be filed with the commissioner at the time when the complete notice, including any amendments or supplements, containing all the information required by the commissioner, and otherwise complying with subdivision (b), is received by the commissioner.

(d) In determining whether or not to object to a notice filed under subdivision (a), except if the commissioner finds that it is necessary in the interests of safety and soundness that the branch office be closed or discontinued, the commissioner shall consider whether the closing or discontinuance of the branch office will have a seriously adverse effect on the public convenience or advantage.