From the Document: "The Cybersecurity and Infrastructure Security Agency (CISA) developed this brochure in collaboration with SAFECOM and the National Council of Statewide Interoperability Coordinators (NCSWIC), with the support and input of public safety officials at multiple levels of government across the country. The Public Safety Communications Evolution brochure: 1. Helps educate the public safety community and elected and appointed officials about the technologies and services to support the future of public safety communications; 2. Describes the evolution of public safety communications and how legacy land mobile radio (LMR) communications used today continues to be the primary voice communications pathway for public safety personnel while the First Responder Network Authority's (FirstNet) Nationwide Public Safety Broadband Network (NPSBN) concurrently brings enhanced wireless broadband data communication capabilities through the deployment of a nationwide data network; 3. Discusses some ofthe most important requirements necessary to achieve the desired future long-term evolution of LMR technology networks and whether a transition is beneficial and operationally effective for the public safety community[.]"
Department of Homeland Security: https://www.dhs.gov/