The riding is limited to existing trails (you cannot cut new trails). All trails are open to UTV's.
I'm not aware of any noise restrictions, but anyone planning to go should verify this if they're UTV is really loud. ATV Skool is run by a former ATV racer, so they understand aftermarket exhaust systems and any noise issue that an exhaust may cause. ATV Skool has a forum and they will answer any specific questions there. They're great people, they'll give you a straight answer without any BS.