The City and surrounding unincorporated lands located in Winnebago County which are within a two-mile radius of the City shall be divided into districts, as shown on the Official Zoning Map which, together with all explanatory matter thereon, shall be adopted by ordinance. One map shall identify the unincorporated area and the other shall identify the incorporated area. Together, these two maps shall be known as the Official Zoning Map.
1. The Official Zoning Map shall be identified by the signature of the Mayor, attested by the City Clerk, under the following words: “This is to certify that this is the Official Zoning Map referred to in Section 165.04 of Ordinance No. 480 of the City of Forest City, Iowa,” together with the date of adoption.
2. If, in accordance with the provisions of this chapter and Chapter 414, Code of Iowa, changes are made in district boundaries or other matter portrayed on the Official Zoning Map, such changes 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 changes were made to the Official Zoning Map.” (Indicating the changes by ordinance numbers and date of publication.)
3. No amendment of this chapter which involves matter portrayed on the Official Zoning Map shall become effective until after such change and entry has been made on said map.