The Commission shall have the power to adopt rules and regulations for the conduct of business within its jurisdiction, and shall keep a record of all its proceedings. Five members shall constitute a quorum. A vacancy in the Commission shall occur when any member shall fail to be present at four consecutive regular meetings, or 25% of the meetings in any fiscal year, unless such absence shall be excused by the Commission and the reason therefor entered in the proceedings.
(‘83 Code, § 33.028)