§ 161.004 ESTABLISHMENTS OF DISTRICTS: PROVISION FOR OFFICIAL ZONING MAP.
   (A)   Official Zoning Map.
      (1)   The territorial limits described in § 161.003 are hereby divided into districts, as shown on the official zoning map which, together with all explanatory matter thereon, is hereby adopted by reference and declared to be part of this ordinance.
      (2)   The Official Zoning Map shall be identified by the signature of the Mayor, attested by the City Clerk, and bearing the seal of the City of Mt. Vernon under the following words: “This is to certify that this is the Official Zoning Map referred to in § 161.004 of the Revised Code of Ordinances of the City of Mt. Vernon, Illinois. (the Zoning Ordinance of the City of Mt. Vernon, Illinois)”, together with the date of the adoption of this ordinance. The official zoning map indicating current zoning district boundaries shall be located in the office of the City Clerk.
      (3)   If, in accordance with the provisions of this ordinance and the Illinois Municipal Code, changes are made in district boundaries or other matter portrayed on the Official Zoning Map, such chances shall be entered on the Official Zoning Map promptly after the amendment has been approved by the City Council, with an entry on the Official Zoning Map as follows: “By official action of the City Council the following (change) changes were made in the Official Zoning Map:
(Date, Ordinance Number                  , Brief description of Change),” which entry shall be signed by the Mayor and attested by the City Clerk.
      (4)   No changes of any nature shall be made in the Official Zoning Map or matter shown thereon, except in conformity with the procedures set forth in this ordinance. Any unauthorized change of whatever kind by any person or persons shall be considered a violation of this ordinance and punishable as provided under Chapter 10 of the Revised Code of Ordinances.
   (B)   Annual Updating of Copies of the Official Zoning Map. In the event there have been changes in the Official Zoning Map in any calendar year, the Administrative Official hereinafter provided for shall prepare and publish or print copies of the Official Zoning Map reflecting zoning district boundaries as of December 31. Such copies shall be printed prior to March 31 of the succeeding year, and shall bear the following words. “This is a copy of the Official Zoning Map reflecting zoning district boundaries as of December 31, 20      “. Fees for such copies of Official Zoning Map shall be established in accordance with § 161.165 of this Ordinance. Regardless of the existence of copies of the Official Zoning Map, the Official Zoning Map located in the Office of the City Clerk shall be the final authority as to the current zoning status of land and water areas, buildings, and other structures in the territorial limits.
   (C)   Replacement of Official Zoning Map.
      (1)   In the event that the Official Zoning Map becomes damaged, destroyed, lost, or difficult to interpret because of the nature or number of changes and additions, the City Council may by resolution adopt a new Official Zoning Map which shall supersede the prior Official Zoning Map. The new Official Zoning Map may correct drafting or other errors or omissions in the prior Official Zoning Map, but no such correction shall have the effect of amending the original Official Zoning Map or any subsequent amendment thereof. The new Official Zoning Map shall be identified by the signature of the Mayor, attested by the City Clerk, and bearing the seal of the City of Mt. Vernon under the following words: “This is to certify that this Official Zoning Map supersedes and replaces the Official Zoning Map adopted (date of adoption of map being replaced) as part of Ordinance No.           of the City of Mt. Vernon, Illinois”.
      (2)   Unless the prior Official Zoning Map has been lost or has been totally destroyed, the prior map or any significant parts thereof remaining shall be preserved, together with all available records pertaining to its adoption or amendment.
(Prior Code, Art. 21, § 21-104)