On October 4, Americans should anticipate a nationwide test conducted by the Federal Emergency Management Agency (FEMA). This test is intended to evaluate the effectiveness of the government’s mass communication systems. Phones, TVs, and radios will emit an alarm simulating what might occur in an emergency. However, it’s important to note that this is just a test.

When the alarm activates at 2:20 pm ET, phones will emit a distinct tone and vibration to ensure accessibility for all, including individuals with disabilities. Phones should display a message reading: “THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed.”

This test, conducted in collaboration with the Federal Communications Commission, will be divided into two parts: one focusing on Wireless Emergency Alerts and the other on the Emergency Alert System.

On television and radio, the test will last approximately one minute and will affect broadcast stations, cable systems, satellite radio, and other television and video providers. The message on TV and radio will read: “This is a nationwide test of the Emergency Alert System, issued by the Federal Emergency Management Agency, covering the United States from 14:20 to 14:50 hours ET. This is only a test. No action is required by the public.”

While the primary test date is set for October 4, FEMA has also established a backup testing date on October 11 in case of severe weather or other disruptions.