National Terrorism Advisory System

The National Terrorism Advisory System (NTAS) is a U.S. government framework that communicates information about potential terrorist threats to the public. It uses color-coded alerts—such as "Elevated" or "Imminent"—to indicate the level of threat and provide guidance on safety measures. The system helps keep citizens informed about risks and encourages vigilance without causing panic. NTAS aims to enhance national security by fostering preparedness and awareness among communities while ensuring the public has clear information during threats or incidents.