The Canadian National Public Alerting System (NPAS) is a Federal, Provincial, and Territorial system that provides emergency management organizations throughout Canada with the capability to warn the public about imminent or unfolding hazards.

Issuers
Specifications, guidance, and other information for government agencies who are issuing public alerts

Distributors
Specifications, guidance, and other information for broadcasters and other distributors who transmit alerts to the public

Recipients
Information for members of the public who receive emergency alerts