Which FPCON requires 100% identification checks?

FPCON Charlie is the level that necessitates 100% identification checks. This heightened security posture is implemented when there is an increase in the threat level to personnel and facilities. Under FPCON Charlie, the situation is deemed critical enough that every individual seeking access to a military installation must have their identity verified thoroughly to prevent unauthorized entry and enhance overall security.

In the context of FPCON levels, Alpha generally corresponds to a normal readiness posture with standard security measures in place. Bravo indicates an increased security concern, but not to the severity of requiring comprehensive identification checks for all individuals. Delta represents the highest state of readiness in response to an imminent threat, which often includes the full deployment of security resources, but by that point, the focus might shift to responding to a direct ongoing threat rather than solely on identification processes.

Overall, FPCON Charlie is specifically characterized by stringent identification protocols, ensuring that security personnel can accurately account for and monitor all individuals on the installation during acute threats.