For the purpose of this title, the city is divided into the following classes of zones:

Each of the sections of the city which are amended or zoned by this title are shown on the maps on file with the department, and such maps are made by this reference, as such, a part of this title as if fully described and detailed herein.

This title and the maps shall be filed in the custody of the department, and may be examined by the public at city hall or via the city's website.

Where uncertainty exists as to the boundary of any zone, the following rules shall apply:

1. Wherever the zone boundary is indicated as being approximately upon the centerline of a street, alley or block, or along a property line, then, unless otherwise definitely indicated on the map, the centerline of the street, alley or block, or such property line, shall be construed to be the boundary of the zone;
2. Whenever such boundary line of such zone is indicated as being approximately at the line of any river, irrigation canal or other waterway or railroad right-of-way, or public park, or other public land, or any section line, then in such case the center of the stream, canal or waterway, or of the railroad right-of-way, or the boundary line of such public land or such section line shall be deemed to be the boundary of the zone; and
3. Where the application of the above rules does not clarify the zone boundary location, the appeals hearing officer shall interpret the map.