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WEA - Frequently Asked Questions

The Department of Homeland Security (DHS) Science and Technology Directorate (S&T) envisions a future where all Americans are able to receive accurate alerts and warnings, regardless of communications technology used. This vision is being achieved through the Federal Emergency Management Agency’s Integrated Public Alert and Warning System (IPAWS). IPAWS is a modernization of the nation’s alert and warning infrastructure, integrating new and existing public alert and warning systems and technologies. In partnership with DHS Science and Technology Directorate (S&T), IPAWS is working to incorporate alerts to mobile devices through Wireless Emergency Alerts (WEA), formerly known as the Commercial Mobile Alert Service. This inclusion is an acknowledgement of the important role wireless technologies play in Americans’ lives today. Given the wide use of wireless mobile devices, WEA ensures more people can receive actionable alerts to help avoid danger or respond more quickly during crises—thereby saving lives and property.

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Last Published Date: October 4, 2019
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