 Both were designated in 2004, and collectively serve the entire state.Many fleets in Tennessee use alternative fuels like the Great Smoky Mountains National Park; cities like Knoxville, Nashville, Sevierville and Kingsport; Oak Ridge National Laboratory; utilities and airports; mass transit agencies; and large international companies like UPS and Waste Management.As of early 2020, Tennessee has about 70 public E-85 stations, 13 large public CNG stations, 19 public propane sites, and over 390 EV charging locations.