Project 25 (P25) is the standard for interoperable digital two-way wireless communications products and systems. Developed under state, local and federal government guidance and Telecommunications Industry Association (TIA) governance, P25 is gaining worldwide acceptance for public safety, security, public service, and commercial applications.
The published P25 standards suite is administered by the TIA in their Mobile and Personal Private Radio Standards Committee (TR-8). Equipment that demonstrates compliance with P25 is able to meet a set of minimum requirements to fit the needs of public safety. These include the ability to interoperate with other P25 equipment, so that users on different systems can talk via direct radio contact.
The P25 plan provides for changing to standards-based modes of command and control as the standardized devices in operation enable such change.