(1)    The commission shall meet regularly at such times and places as the commission shall determine, but shall meet at least quarterly.

    (2)    Three (3) members shall constitute a quorum to do business.

    (3)    The chair is authorized to excuse any member from attendance at a commission meeting; provided, that the member requested to be excused before the meeting.  Any member who is absent, without being excused, from twenty-five (25) percent of the regular commission meetings held in a calendar year shall automatically forfeit the office.  Any member who is absent, without being excused, from three (3) consecutive regular meetings shall automatically forfeit the office.  It shall be the duty of the chair to promptly notify the city council of the vacancy.

    (4)    The commission may adopt rules for the conduct of its business.