CTIA and wireless carriers representing nearly 97% of subscribers have partnered with the Federal Communications Commission and the Federal Emergency Management Agency to create a robust and reliable wireless emergency-alert system. Wireless Emergency Alerts is a national emergency-alert system that sends concise, textlike messages to users' WEA-capable mobile devices. Mobile users will not be charged for receiving these alerts and are automatically enrolled to receive them. Learn more about WEA on CTIA's website.