Threat Condition level (like Defcon
s.. now called FPCON
as of June 2001
THREATCON NORMAL - No threat of terrorist activity is present.
THREATCON ALPHA - There is a general threat of possible terrorist activity against installations, building locations, and/or personnel, the nature and extent of which are unpredictable.
THREATCON BRAVO - There is an increased and more predictable threat of terrorist activity even though no particular target has been identified.
THREATCON CHARLIE - An incident has occurred or intelligence has been received indicating that some form of terrorist action is imminent.
THREATCON DELTA - A terrorist attack has occurred or intelligence has been received that action against a specific location is likely.