Each year, at the first meeting of the board, the members will select a chairperson and a vice-chairperson. It shall be the duty of the chairperson to preside at all meetings of the board and of the vice-chairperson to preside at all meetings in the absence of the chairperson. A majority of the board shall constitute a quorum for the transaction of business, and affirmative votes from a majority of the members present and voting shall be necessary to carry any proposition. A meeting of the board shall be held at least once a month. (Ord. 6000 § 1, 2006; 1957 code § 1.18.050.)