(a) A domestic mutual insurer shall have bylaws for the government of its affairs. The initial board of directors of a domestic mutual insurer shall adopt original bylaws, subject to the approval of the insurer's members at the next succeeding meeting. The members shall have power to make, modify, and revoke bylaws.

(b) The bylaws shall provide:

(1) That each member is entitled to one vote upon each matter coming to a vote at meetings of members or to more votes in accordance with a reasonable classification of members as set forth in the bylaws and based upon the amount of insurance in force, number of policies held, or upon the amount of the premiums paid by such member or upon other reasonable factors. A member shall have the right to vote in person or by his written proxy made not less than 30 days prior to the meeting. No such proxy shall be made irrevocable for longer than a period of three years;

(2) For election of directors by the members and the number, qualifications, terms of office, and powers of directors;

(3) The time, notice, quorum, and conduct of annual and special meetings of members and voting thereat. The bylaws may provide that the annual meeting shall be held at a place, date, and time to be set forth in the policy and without giving other notice of such meeting;

(4) The number, designation, election, terms, powers, and duties of the respective corporate officers;

(5) For deposit, custody, disbursement, and accounting for corporate funds; and

(6) For any other reasonable provisions customary, necessary, or convenient for the management or regulation of its corporate affairs.

(c) The insurer shall promptly file with the commissioner a copy, certified by the insurer's secretary, of its bylaws and of every modification thereof or addition thereto. The commissioner shall disapprove any bylaw provision deemed by him to be unlawful, unreasonable, inadequate, unfair, or detrimental to the proper interests or protection of the insurer's members or any class thereof. The insurer shall not, after receiving written notice of such disapproval and during the existence thereof, effectuate any bylaw provision so disapproved.