Last month, P25 celebrated the 25th year since the initial conference that launched the future of public safety communications technology. Even in 1989, it was obvious the inevitable transition from analog to digital had started and without some serious coordination (through standards), digital radio interoperability would be impossible. The seminal conference in 1989 set us on the path to what we now call P25, or Association of Public-Safety Communications Officials (APCO) Project 25.