If the board of directors of a domestic insurer has not adopted emergency bylaws, the following provisions become effective upon the occurrence of a national emergency:
(1) Three directors constitute a quorum for the transaction of business at all meetings of the board.
(2) A vacancy in the board may be filled by a majority of the remaining directors, though less than a quorum, or by a sole remaining director.
(3) If there are no surviving directors, but at least three vice presidents of the insurer survive, the three vice presidents with the longest term of service shall be the directors and shall possess all of the powers of the previous board of directors and the powers that are granted herein or by subsequently enacted legislation. By a majority vote the emergency board of directors may elect other directors. If there are not at least three surviving vice presidents, the director of insurance or designated person exercising the powers of director of insurance shall appoint three persons as directors who shall possess all of the powers of the previous board of directors and the powers that are granted herein or by subsequently enacted legislation, and these persons by majority vote may elect other directors.