I believe it is being used by the highway department. Clifton Park Highway used to be on 151.025, however, with Warren County using 151.025 for Fire Control I think they were getting blown off the channel. So, new frequency, new digital modulation. 154.860 is the new channel. I don't have a way to monitor DMR so I can't 100% confirm its the Highway Department but it would be my best guess.