Office of Security and Emergency Preparedness What is the Homeland Security Advisory System?

Homeland Security Advisor System
Low Condition Green Low risk of terrorist attacks. The following Protective Measures may be applied: Refining and exercising preplanned Protective Measures Ensuring personnel receive training on HSAS, departmental, or agency-specific Protective Measures; and Regularly assessing facilities for vulnerabilities and taking measures to reduce them.
Guarded Condition Blue General risk of terrorist attack. In addition to the previously outlined Protective Measures, the following may be applied: Checking communications with designated emergency response or command locations; Reviewing and updating emergency response procedures; and Providing the public with necessary information.
Elevated Condition Yellow Significant risk of terrorist attacks. In addition to the previously outlined Protective Measures, the following may be applied: Increasing surveillance of critical locations; Coordinating emergency plans with nearby jurisdictions; Assessing further refinement of Protective Measures within the context of the current threat information; and Implementing, as appropriate, contingency and emergency response plans.
High Condition Orange High risk of terrorist attacks. In addition to the previously outlined Protective Measures, the following may be applied: Coordinating necessary security efforts with armed forces or law enforcement agencies; Taking additional precaution at public events; Preparing to work at an alternate site or with a dispersed workforce; and Restricting access to essential personnel only.
Severe Condition Red Severe risk of terrorist attacks. In addition to the previously outlined Protective Measures, the following may be applied: Assigning emergency response personnel and pre-positioning specially trained teams; Monitoring, redirecting or constraining transportation systems; Closing public and government facilities; and Increasing or redirecting personnel to address critical emergency needs.