2. Scope. This instruction incorporates the requirements of references (a)
through (h), and is the Auxiliary Security Force Plan for NOSC. Events not
considered an emergency and that will not exceed the available resources of
the normal security force will be handled under guidance contained in refer-
ence (b). Countermeasures required for threat conditions (THREATCONS) are
included in references (g) and (h).
a. THREATCON Alpha. This condition applies when there is a general
threat of possible terrorist activity against installations and personnel, the
nature and extent of which are unpredictable, when the circumstances do not
justify full implementation of the measures of Threat Condition Bravo.
b. THREATCON Bravo. This condition applies when an increased and more
predictable threat of terrorist activity exists. The measures in this condi-
tion must be capable of being maintained for weeks without causing undue
hardship, without affecting operational capability, and without aggravating
relations with local authorities.
1 February 1988
c. THREATCON Charlie. This condition applies when an incident occurs or
when intelligence is received indicating that some form of terrorist action
against installations and personnel is imminent. Implementation of this meas-
ure for more than a short period will probably create hardship and will affect
the peacetime activities of the Center and its personnel.
d. THREATCON Delta. This condition applies in the immediate area where a
terrorist action against a specific location is likely. Normally, THREATCON
Delta is declared as a localized warning.