I think if this is true it highly depends on who owns and mamages the land. I am pretty sure this is not currently true on almost all US National Forest land.

I think if this is true it highly depends on who owns and mamages the land. I am pretty sure this is not currently true on almost all US National Forest land. Anything with a motor qualifies as for motor vehicle there and you will only be allowed on trails marked for motorized use on the MVUM maps. This includes mobility devices