TN would be about the ONLY ACOE using E that I am aware of. Most of them nationwide are clear most of the time, but yes they are using P25 VHF on narrowband almost completely nationwide now. They are about tied with the NPS, and far ahead of FS on the changes and upgrades. Be aware that they not only use the repeaters, but do some simplex direct communications which you have to be pretty close to catch. They are busiest during hunting season, and during summer "peak camping" seasons.