New York Penal Law Section 265.06 - Unlawful possession of a weapon upon school grounds.

265.06 Unlawful possession of a weapon upon school grounds.
It  shall be unlawful for any person age sixteen or older to knowingly
  possess any air-gun, spring-gun or other instrument or weapon  in  which
  the  propelling  force  is  a spring, air, piston or CO2 cartridge in or
  upon a building or  grounds,  used  for  educational  purposes,  of  any
  school, college or university, without the written authorization of such
  educational institution.
Unlawful possession of a weapon upon school grounds is a violation.

Last modified: February 3, 2019