U.S. flag

An official website of the United States government

Government Website

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Safely connect using HTTPS

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Archived Content

In an effort to keep DHS.gov current, the archive contains outdated information that may not reflect current policy or programs.

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.

Attachment Ext. Size Date
WEA Research, Development, Testing and Evaluation (RDT&E) Program Frequently Asked Questions PDF 186.41 KB
Last Updated: 01/12/2023
Was this page helpful?
This page was not helpful because the content