No changes, erasures, modifications or revisions shall be made
in any subdivision plat after approval has been given by the Planning
Board and endorsed in writing on the plat, unless the plat is first
resubmitted to the Planning Board and such Board approves in writing
any such modifications. In the event that any subdivision plat is
recorded in the Office of the Dutchess County Clerk without complying
with these requirements, the same shall be considered null and void,
and the Planning Board shall institute proceedings to have the plat
stricken from the records of the Office of the Dutchess County Clerk.