Parks are all very well maintained and there are usually rangers on site to help out however possible. They are well trained and excellent hosts. Modest fees are charged for park use and registration is required for camping. In the summer months, one week is considered the expected stay with a two-week maximum. In the spring and fall weekend stays are usually permitted but in the Western Mountains the parks are usually filled to capacity during the 'leaf looking' season.
Policies vary from park to park so it is best to phone and get the current information.