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March 4, 2018
Telecommunications services that are used to maintain a state of readiness or to respond to and manage any event or crisis (local, national, or international) that causes or could cause injury or harm to the population, damage to or loss of property, or degrade or threaten the national security or emergency preparedness posture of the United States.
SOURCE: SP 800-53; CNSSI-4009; 47 C.F.R., Part 64, App A
