Zones are located and bounded 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 ordinance. The Shoreland Zone boundaries are determined by the terms of Article XIV (Shoreland Zoning) and the section creating that Zone.

The Official Zoning Map is certified by the signature of the Mayor attested by the City Clerk under the following words: "This is the Official Zoning Map referred to in Article V of the Zoning Ordinance of the City of Biddeford," together with the date of the adoption of this ordinance.

The official copy shall be located in the office of the City Clerk. Regardless of the existence of other copies of the Zoning Map which from time to time may be made or published, the Official Zoning Map shall be the final authority as to the current zoning status of the City, except where Article XIV (Shoreland Zoning) requires field verification of Shoreland Zone boundaries.

If changes are made in the zone boundaries or other matter portrayed on the Official Zoning Map, except as to the Shoreland Zone, such changes shall be made on the Official Zoning Map within 14 days after the amendment has been adopted together with an entry on the Official Zoning Map as follows: "On (insert date) by official action of the City Council, the following change(s) was (were) made: (insert brief description of the nature of change)." Immediately beneath the entry the Mayor shall place his signature, attested by the City Clerk.

No amendment to this ordinance which involves matter portrayed on the Official Zoning Map shall become effective until after such change and entry has been made in accordance with the procedure set forth in this ordinance. Any unauthorized change of whatever kind by any person or persons shall be considered a misdemeanor and punishable as provided by law.

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. The new Official Zoning Map may correct drafting or other errors or omissions in the prior Official Zoning Map, but no such corrections shall have the effect of amending the Official Zoning Map.