OFFICE OF EMERGENCY MANAGEMENT

Homeland Security Advisory System

The National Terrorism Advisory System, or NTAS, replaced the color-coded Homeland Security Advisory System (HSAS) in April, 2011. The NTAS system effectively communicates 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.

Learn more about the new system by visiting Department of Homeland Security.

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