Homeland Security Advisory System
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| Homeland Security Advisory System |
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Understanding the Homeland Security Advisory System
The world has changed since September 11, 2001. We remain a nation at risk
to terrorist attacks and will remain at risk for the foreseeable future. At
all Threat Conditions, we must remain vigilant, prepared, and ready to deter
terrorist attacks. The following Threat Conditions each represent an
increasing risk of terrorist attacks. Beneath each Threat Condition are some
suggested Protective Measures, recognizing that the heads of Federal
departments and agencies are responsible for developing and implementing
appropriate agency-specific Protective Measures:
1. Low Condition (Green). This condition is declared when
there is a low risk of terrorist attacks. Federal departments and agencies
should consider the following general measures in addition to the
agency-specific Protective Measures they develop and implement: