The Emergency Alert System (EAS) 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. EAS participants – radio and television broadcasters, cable systems, satellite radio and television providers, and wireline video providers – deliver local alerts on a voluntary basis, but they are required to provide the capability for the President to address the public during a national emergency.
The Federal Emergency Management Agency (FEMA), the FCC, and the National Oceanic and Atmospheric Administration's National Weather Service (NWS) work collaboratively to maintain the EAS and Wireless Emergency Alerts, which are the two main components of the national public warning system and enable authorities at all levels of government to send urgent emergency information to the public.
FEMA is responsible for any national-level activation, tests, and exercises of the EAS.
The FCC's role includes establishing technical standards for EAS participants, procedures for EAS participants to follow in the event the system is activated, and testing protocols for EAS participants.
Alerts are created by authorized federal, state, and local authorities. The FCC does not create or transmit EAS alerts.
The majority of EAS alerts originate from the National Weather Service in response to severe weather events, but an increasing number of state, local, territorial, and tribal authorities also send alerts. In addition, the NOAA Weather Radio All Hazards network, the only federally-sponsored radio transmission of warning information to the public, is part of the EAS.
- FEMA's Integrated Public Alert & Warning System
- EAS Test Reporting System (ETRS) and EAS Handbook
- Certified EAS Equipment Vendors
- State EAS Plans and Chairs
- EAS Rules (47 C.F.R. Part 11)
- National Weather Service
- 2017 Blue Alerts Report & Order
- 2017 EAS Test and EAS Test Reporting System ETRS
- 2015 6th Report and Order (pdf)
- 2013 Reports On Lessons Learned From The 2011 Nationwide Emergency Alert System Test (pdf)
- 2012 5th Report & Order (pdf)
- 2011 4th Report & Order (pdf)
- 2011 3rd Report & Order (pdf)
- 2007 2nd Report & Order and FNPRM (Next Generation EAS) (pdf)
- 2005 1st Report & Order and FNPRM (Digital) (pdf)
- 2005 Report & Order (Wireless) (pdf)
- 2004 NPRM (Digital) (pdf)
- 2004 NPRM (Wireless Cable Systems) (pdf)
- 2002 Report & Order (New Codes, e.g., Amber Alert) (pdf)
- 1998 3rd Report & Order (Channel Override) (pdf)
- 1997 2nd Report & Order (Cable Systems) (pdf)
- 1995 Memorandum Opinion and Order (Exemption for FM Translators) (pdf)
- 1994 Report & Order and FNPRM (Establishment of EAS) (pdf)
December 5, 2016 - White Paper
Earthquake Early Warnings: An Engineering Analysis