The City is hereby divided into districts, with the district areas and boundaries as shown on the Official Zoning Map, along with all proper notations, references and explanatory matter. The Official Zoning Map shall be adopted by reference and declared to be a part of this Ordinance. This Map shall be identified by the signature of the Clerk of Council, and bearing the seal of the City under the following words: “This is to certify that this is the Official Zoning Map adopted by the City of Alliance Council on March 19th, 2007.” If in accordance with the provisions of this Ordinance, changes are made in district boundaries or other matter portrayed on the Official Zoning Map, such changes shall be entered on the Map promptly after the amendment has been approved by the Council. No changes of any nature shall be made on the Official Zoning Map, except in conformity with the amendment procedures set forth in this Ordinance or in conformity with the procedures set forth in the Revised Code for adoption of a new Official Zoning Map. The Official Zoning Map shall be kept in the office of the Clerk of Council, and shall be the final authority as to the current zoning status of land and water areas and structures in the City.