The Official Zoning Map, hereby adopted, shall be identified by the signature of the Town Supervisor, attested by the Town Clerk and shall bear the Seal of the Town and the following statement: "This is to certify that this is the Official Zoning Map adopted in accordance with Chapter 197 of the North Greenbush Town Code by Local Law number 14 for 1997.

If any changes or amendments to district boundaries or to other data which is shown on the Official Zoning Map are duly made in accordance with the provisions of this chapter and Town law, such changes or amendments shall be entered or caused to be entered on the Official Zoning Map by the enforcement officer before the effective date of such change or amendment, and the following statement shall be entered on the Official Zoning Map: "The following changes are made in the Official Zoning Map on (date of passage) by official action of the Town Board. (Give brief description of the change)." Such statement shall be signed by the Town Supervisor and attested by the Town Clerk.

No changes, alterations or additions whatsoever shall be entered on the Official Zoning Map except in accordance with the provisions of this chapter, and any person making such change not in accordance with the provisions of this chapter shall be held in violation of this chapter and subject to penalties under § 197-54.

The Official Zoning Map shall be continuously and conspicuously displayed in such place as is designated by the Town Board.

The Official Zoning Map shall be the final authority as to the delineation of zoning districts and the location of zoning district boundaries regardless of the existence of alleged reproduced copies of said Official Zoning Map which may show districts or boundaries in conflict with the Official Zoning Map.

The Zoning Board of Appeals, hereinafter referred to as "ZBA," shall, upon request, determine the exact location of any zoning district boundary about which there may be uncertainty or disagreement.

Where district boundaries are indicated as approximately following the center lines or right-of-way lines of streets, highways, railroads or public utility easements, said boundaries shall be construed to be coincident with such lines. Said boundaries shall be deemed to be automatically moved if a center line or right-of-way line of such street, highway, railroad or public utility easement is moved a maximum of 50 feet.

Where district boundaries are so indicated that they are approximately parallel to the center lines or right-of-way lines of streets, highways, railroads or public utility easements, said boundaries shall be construed as being parallel thereto and at such distances therefrom as are indicated on the Zoning Map or as shall be determined by the use of the scale shown on the Zoning Map.[1]

Where district boundaries are indicated as approximately following the Town boundary line, property lines, lot lines or projections thereof, said boundaries shall be construed to be coincident with such lines or projections thereof.

Where district boundaries are so indicated that they are approximately parallel to the Town boundary line, property lines, lot lines or projections thereof, said boundaries shall be construed as being parallel thereto and at such distances therefrom as are indicated on the Zoning Map or as shall be determined by the use of the scale shown on the Zoning Map.[2]

Where district boundaries are indicated as approximately following streams, other than the Hudson River, said boundaries shall be construed to be coincident with the center lines of the main channels of such streams, and said boundaries shall be deemed to be automatically moved if the main channels of such streams are moved by natural or artificial means up to a maximum of 50 feet.

Any district boundary indicated as approximately following the Hudson River shall be construed as being coincident with the pierhead line, if established, or a line parallel to and 200 feet distant from the mean high-water shoreline. If more than one zoning district is established along the Hudson River, the boundary line between districts which extends into the river shall be an extension of the zoning boundary line which meets and is perpendicular to the pierhead line, if established, or a line parallel to and 200 feet distant from the mean high-water shoreline.

Where a street, highway, railroad or public utility easement centerline or right-of-way line is coincident with a zoning boundary line and varies from the actual on-the-ground physical monument or mark, then such on-the-ground physical monument or mark shall determine said zoning district boundary.