Requires the installation of school master key boxes for building access by law enforcement and emergency responders

Expanded applicability to include private schools, non-public institutions, boards of cooperative education services, county vocational education and extension boards, and the chancellor of the city school district of New York, in addition to public school districts.

Added requirement for master key boxes on every instructional school building in non-campus settings, not just school buildings.

Added new exemption provision allowing districts to exclude master key boxes if they have a written agreement with local law enforcement acknowledging and approving a determination to exclude them from the school safety plan.

Changed master key box contents from mandatory to recommended items that should be considered for inclusion based on the school safety plan.

Modified antitheft alarm standard from UL 1037 to basic commercial applications standard under UL 1037.

Added new section amending section 2801-a to include master key box installation in district-wide safety plan reviews and define panic alarm systems.

Modified section 3602 to include exterior master key boxes as eligible for building aid funding alongside metal detectors and security cameras.