Kentucky does not require every exterior school door to be kept locked. Under KRS 158.162(3)(d), every school must develop and adhere to practices that control outside access to exterior doors during the school day, control the main entrance with electronically locking doors, a camera, and an intercom system, and keep classroom doors closed and locked during instructional time. The local superintendent verifies district compliance to the Kentucky Department of Education by November 1 each school year, and the state school security marshal reviews every public school on site, unannounced, each year.
The access-control duties sit in KRS 158.162(3)(d), the building-hardening core of the 2019 School Safety and Resiliency Act. The compliance mandate is subsection (4), the November 1 verification is subsection (6), and the construction-approval penalty is subsection (7). The provisions were verified verbatim against the statute text current through the 2026 Regular Session.
The word choice is the boundary. The legislature wrote locked for classroom doors and controlling outside access for exterior doors. A Kentucky school decides how its exterior doors are controlled; it does not get to decide whether.