FEMA will initiate the test of WEA at 2:18 pm EDT on October 4, 2023, using the National Alert classification of Alert Message. The test will be sent to the entire United States and its territories. Members of the public with mobile device service from a CMS provider that participates in WEA in their areas will receive the test message, which will read “THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed.”