When the appeal, rehearing or review is before any City committee, board, commission, or City Council, the act or appellate determination from which an appeal is taken may be reversed or modified only upon an affirmative vote of a majority of the authorized membership of such City committee, board, commission or City Council. (Ord. 1030 § 2(2), 2018; Ord. 853 § 4 (part), 1993; Ord. 751 § 2, 1987)