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The Emergency Alert System is a national public warning system commonly used by state and local authorities to deliver important emergency information, such as weather and AMBER alerts, to affected communities over television and radio. Emergency Alert System participants – radio and television broadcasters, cable systems, satellite radio and television providers, and wireline video providers – deliver state and local alerts on a voluntary basis, but they are required to deliver Presidential alerts, which enable the President to address the public during a national emergency. The Federal Emergency Management Agency (FEMA) and the FCC work collaboratively to maintain the Emergency Alert System and Wireless Emergency Alerts, which are the two main components of the national public warning system. Authorized federal, state, and local authorities create the alerts that are transmitted through the system.
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