Ohio Rev. Code § 3941.03
The articles of incorporation of a domestic mutual company may be amended at any meeting of members, thirty days' notice of which, and of the business to come before it, has been given by a majority of the directors in a newspaper published and of general circulation in the county where the company's principal place of business is located. Such amendment, if adopted by at least three-fifths vote of the members present and voting at the meeting so called if not inconsistent with the constitution and laws of this state, and of the United States, shall be approved by the attorney general and secretary of state. Such amendment and the certificate of approval by the attorney general shall be filed in the office of the secretary of state, and shall thereupon be in effect. After recording such amendment the secretary of state shall deposit a copy thereof with the superintendent of insurance.
R.C. §3941.03