Emergency alert, warning, and notification (AWN) systems help protect lives and property by identifying information about an impending threat, communicating that information to those who need it, and facilitating the timely taking of protective actions. SAFECOM, the National Council of Statewide Interoperability Coordinators (NCSWIC), and the Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA) developed these best practices, known as the "Ten Keys," in conjunction with the AWN community as recommendations to help organizations enhance critical information sharing. Alert originators (AOs), partners, and stakeholders should work together to implement these best practices into existing AWN structures: