Camden County Officials Deploy New Protocols For Emergency Responses To SchoolsThe four-tier approach starts with the lowest level called a "lockout," going next to "shelter in place," to "room clear," to the highest level - a "lockdown."
Pennsylvania's 911 System Needs Upgrades, New TechnologyPennsylvania's various 9-1-1 systems are in need of renewal and there's a lot more to it than just finding the money for upgrades.

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