Overview
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This Public Alerts developer site provides best practices for the creation of a
Common Alerting Protocol (CAP)
feed. The CAP format is a non-proprietary, industry standard specification that
transmits emergency warning alerts. This site also highlights the following:
- The data that Google needs from the alert to display it on Google properties.
- How to prepare the data to share with Google.
- The overall integration process.
Who can publish Google Public Alerts
Only these Partners can publish a Google Public Alert:
A public safety agency or public alerts provider who has information that
affects people's lives and property.
Either the original and authoritative author of the alert information or a
Partner who has rights from the original author to aggregate or distribute that
information.
We recommend that all meteorological agencies register with the
WMO Register of Alerting Authorities.
In the US, we also prefer that our Partners are certified
IPAWS Public Alerting Authorities.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-05-07 UTC.
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