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NOTICE: The CRTC mandated wireless service providers in Canada to implement wireless public alerting (WPA) capability on their LTE networks by April 6, 2018.

Emergency alerts that are sent to wireless devices will be distributed to cell phone users with WPA-compatible devices via cell broadcast over LTE networks. Cell broadcast offers many benefits to alert dissemination as it allows messages to be broadcast to all compatible cell phones within a designated geographical area, simultaneously, and without the requirement for users to opt-in. Cell broadcast also uses dedicated network signalling, different from voice and data capacity, and is therefore not affected by network congestion.

As of April 6th, Wireless AMBER Alerts, as well as other threat-to-life emergency alerts, will be sent to WPA-compatible devices using the new system.