Additional procedure for map amendments

If the proposed amendment involves a change in the official zoning map, the applicant shall submit a plat of the property in question bearing the stamp of a registered professional engineer or a registered land surveyor affirming that the boundaries of the property have been surveyed and closed, unless the property in question can be precisely identified by reference to (1) an approved plat containing a surveyor's stamp that has been recorded in the land evidence records of the town, or (2) a specific plat and lot designation of the tax assessor of the town.