California Code, Insurance Code - INS § 1556

(a) If the surviving entity is a domestic incorporated insurer in a merger in which a domestic reciprocal insurer is a constituent party, after approval of the merger by the constituent reciprocal insurer and constituent incorporated insurer, the surviving incorporated insurer shall file in the office of the Secretary of State a copy of the agreement of merger and attachments required under paragraph (1) of subdivision (g) of Section 1113 of the Corporations Code.

(b) If the surviving entity is a domestic reciprocal insurer in a merger in which a domestic incorporated insurer is a constituent party, after approval of the merger by the constituent disappearing domestic incorporated insurer and constituent reciprocal insurer, the surviving reciprocal insurer shall file in the office of the Secretary of State a copy of the agreement of merger and attachments required under paragraph (2) of subdivision (g) of Section 1113 of the Corporations Code.