Can classroom doors be locked in SC public schools?

South Carolina law doesn't explicitly prohibit locking classroom doors, but it strongly encourages keeping them unlocked for easy emergency egress. The emphasis is on safety and quick exit in emergencies, which usually outweighs the desire for security from intruders. School districts often have their own policies that reflect this balance, prioritizing the ability to quickly evacuate students in the event of a fire or other emergency. While a door might be locked briefly for specific reasons (like a classroom test), it's generally expected to be unlocked during regular class time.