Sec. 302. (a) ADVISORY─AREA. Action of a plan commission is not official, unless it is authorized, at a regular or special meeting, by a majority of the entire membership of the plan commission.
(b) METRO. Action of the metropolitan development commission is not official, unless it is authorized, at a regular or special meeting, by:
(1) at least six (6) members, when at least ten (10) members are present at the meeting;
(2) at least five (5) members, when eight (8) or nine (9) members are present at the meeting; or
(3) at least four (4) members, when fewer than eight (8) members are present at the meeting.