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 said 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 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 County
Clerk.