The existing ordinances of the city covering the zoning area of the city, in their entirety and including the map heretofore adopted and made a part of this title, are hereby superseded and amended to read as set forth herein; provided, however, that this title shall be so interpreted upon all questions, including, but not limited to, questions of construction, questions relating to tenure of officers and boards established by previous ordinances, questions of conforming or nonconforming uses, buildings and structures, and questions as to the dates upon which such uses, buildings or structures became conforming or nonconforming. (Ord., 9-3-1996)