N.Y. Penal Law § 265.06

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