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National Terrorism Advisory System
National Terrorism Advisory System

The National Terrorism Advisory System (NTAS) replaces the color codes of the Homeland Security Advisory System. This new alert system will more effectively communicate information about terrorist threats by providing timely, detailed information to the public, government agencies, first responders, airports and other transportation hubs, and the private sector.

NTAS Alerts
Imminent Threat Alert
  • Warns of a credible, specific and impending terrorist threat against the United States

Elevated Threat Alert
  • Warns of a credible terrorist threat against the United States

After reviewing the available information, the Secretary of Homeland Security will decide, in coordination with other federal entities, whether an NTAS alert should be issued. NTAS alerts will only be issued when credible information is available.

Alert Information

These alerts will include a clear statement that there is an imminent threat or elevated threat. Using available information, the alerts will provide a concise summary of the potential threat, information about actions being taken to ensure public safety and recommended steps that individuals, communities, businesses and governments can take to help prevent, mitigate or respond to the threat.

The NTAS alerts will be based on the nature of the threat; in some cases, alerts will be sent directly to law enforcement or affected areas of the private sector, while in others, alerts will be issued more broadly to the American people through both official and media channels.

Receive updates from the NTAS.

Recommended Activities

All Americans should continue to be vigilant, take notice of their surroundings and report suspicious items or activities to local authorities immediately. Everyone should establish an emergency preparedness kit and emergency plan for themselves and their family and stay informed about what to do during an emergency.

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