Up here near Erie, PA, at least, DCNR and Fish and Boat Commission still use the VHF freqs. However, they are in the process of being phased out statewide in favor of the PA Starnet system. I don't know exactly when this will happen, but I don't think it is occurring at the same time for everyone across the entire state. (Our local PSP troop just moved to the open sky system not even a year ago much later than other sites.)