On Wednesday, the first Presidential emergency alerts will be tested on phones nationwide.
Almost all cell phones across the country will go off at 2:18 p.m. EDT to test the new wireless emergency alert system.
FEMA officials say they expect the alert to reach 75 percent of wireless-enabled devices, including cell phones and smartwatches.
The alert will not interrupt a phone call or an active data session, though FEMA and the FTC are working to make sure the information reaches more people.
Despite being called a “Presidential Level Alert,” the messages won’t be written by President Donald Trump or any other sitting President in the future.
The alert is meant to be used in cases of national threats like a nuclear attack or a terrorist attack.
The message Wednesday will read “Presidential Alert: This is a test of the National Wireless Emergency Alert System. No action is needed.”
About two minutes after the wireless emergency alert, the broadcast system will send a similar message through radio and television stations.