FEMA and the Federal Communications Commission (FCC) will test the nation’s public alert and warning systems at 2:20 p.m. ET on Wednesday, August 11th.The purpose of the test is to assess the effectiveness of the Emergency Alert System (EAS) to receive and convey a national message via radio and television and of the Wireless Emergency Alerts (WEA) infrastructure to deliver a test message to mobile phones. FEMA regularly tests the public alert and warning systems to assess the operational readiness of the supporting infrastructure. The tests also help identify any needed technological and administrative improvements to the systems.