California Code, Financial Code - FIN § 4966

(a) Within 60 days after a conversion, the resulting depository corporation shall file with the Secretary of State an officers' certificate reciting the name of the converting depository corporation, the name of the resulting depository corporation, the effective date of the conversion, and that the conversion has been completed in compliance with the provisions of federal law. The Secretary of State shall enter the fact of the conversion on the Secretary of State's corporation records for the converting depository corporation, and the converting depository corporation shall thereafter not be deemed to be a corporation organized under the laws of this state.

(b) As to any conversion, whenever effected, if an officers' certificate has not been filed pursuant to subdivision (a) within 60 days after the completion of the conversion, the commissioner may file a report with the Secretary of State setting forth, to the extent the commissioner has knowledge he or she considers reliable, the recitals specified in subdivision (a), and the Secretary of State shall record the fact of the conversion with the same effect as provided in subdivision (a).