(a) The districts established under Chapters 1108 through 1116 along with their respective boundary lines are shown on the zoning map and herein established together with all explanatory matter thereon, are hereby adopted by reference and declared to be part of the New London Zoning Ordinance.
(b) The Official Zoning Map shall be drawn on a permanent, reproducible material and identified by the signatures of the President of Council and mayor of the Village of New London, Ohio.