The Township is hereby divided into zones, or districts, as shown on the Official Zoning Map which, together with all explanatory matter thereon, is hereby adopted by reference and declared to be a part of this chapter.

The Official Zoning Map shall be identified by the signature of the Chairman of the Board of Supervisors, attested by the Secretary, and bearing the seal of the Township under the following words: "This is to certify that this is the Official Zoning Map referred to in Article II, § 250-3 of Chapter 250, Zoning, of the Township of East Hanover, Lebanon County, Pennsylvania," together with the date of the adoption of this chapter.

If, in accordance with the provisions of this chapter and Article VI, Pennsylvania Municipalities Planning Code (53 P.S. § 10601 et seq.), 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 Township Supervisors with an entry on the Official Zoning Map as follows: "On (date), by official action of the Township Supervisors, the following (change) changes were made in the Official Zoning Map: (brief description of nature of change)," which entry shall be signed by the Chairman of the Supervisors and attested by the Township Secretary. No amendment to 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.

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 chapter. Any unauthorized change of whatever kind by any person or persons shall be considered a violation of this chapter and punishable as provided under § 250-278.

Regardless of the existence of purported copies of the Official Zoning Map, which may from time to time be made or published, the Official Zoning Map which shall be located in the office of the Township Supervisors shall be the final authority as to the current zoning status of land and water areas, buildings, and other structures in the Township.

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 Township Supervisors may by resolution adopt a new Official Zoning Map which shall supersede the prior Official Zoning Map. The new Official Zoning Map shall be identified by the signature of the Chairman of Supervisors, attested by the Township Secretary of the Chairman of Supervisors, attested by the Township Secretary, and bearing the seal of the Township under the following words: "This is to certify that this Official Zoning Map, adopted November 19, 2013, as part of Ord. No. 2013-3 of East Hanover Township, Lebanon County, Pennsylvania."

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.