Within 90 days following the signing of a final
plat, the subdivider shall file or record the final plat with the
Onondaga County Clerk. No subdivision plat shall be filed without
an endorsement, in such manner as the Planning Board may designate,
that the plat does not conflict with the County Official Map, where
one exists, or, in cases where plats do front on or have access to
or are otherwise related to roads or drainage systems shown on the
County Map, that such plat has been approved in the manner specified
by § 239-k of the General Municipal Law. Otherwise, such approval shall expire as provided in § 7-728
of the Village Law. Such final plat shall then be reduced to eleven
inches by seventeen inches, and three linen or canvas-backed copies
shall be supplied to the Village Clerk. Notwithstanding the foregoing,
upon request of the subdivider, the Planning Board may extend the
time for filing or recording such final plat if, in its opinion, such
extension is warranted by the particular circumstances thereof, for
not to exceed two additional periods of 90 days each.