The mayor with the approval of the city council shall appoint the first chairperson of the board from among its members. When there is a vacancy in the office of chairperson, the commission shall elect a chairperson from among its members. A majority of the members of the board shall determine the time, place and frequency of its meetings, and adopt rules of procedure for the conduct of board hearings and business. The board shall act only by a majority vote of all members. The board may do any other things necessary or proper to carry out its functions. (Prior code § 60.13.113)