Threat Levels Defined
Green: Low Condition
Low risk of terrorist attacks. The following protective measures may be applied:
  • Refining and exercising preplanned protective measures
  • Ensuring personnel receive training on homeland security advisory system, departmental, or agency-specific protective measures
  • Regularly assessing facilities for vulnerabilities and taking measures to reduce them
Blue: Guarded Condition
General risk of terrorist attack. In addition to the previously outlined protective measures, the following steps may be taken:
  • Checking communications with designated emergency response or command locations
  • Reviewing and updating emergency response procedures
  • Providing the public with necessary information
Yellow: Elevated Condition
Significant risk of terrorist attacks. In addition to the previously outlined protective measures, the following steps may be taken:
  • 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
  • Implementing, as appropriate, contingency and emergency response plans
Orange: High Condition
High risk of terrorist attacks. In addition to the previously outlined protective measures, the following steps may be taken:
  • 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, restricting access to essential personnel only
Red: Severe Condition
Severe risk of terrorist attacks. In addition to the previously outlined protective measures, the following steps may be taken:
  • Assigning emergency response personnel and pre-positioning specially trained teams
  • Monitoring, redirecting or constraining transportation systems
  • Closing public and government facilities
  • Increasing or redirecting personnel to address critical emergency needs

Source: Office of Homeland Security

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