The use of any motor powered devices or vehicles by the public on the mountain creates substantial risks of serious harm to the user, the environment and other users, and therefore is prohibited.

Motor driven mobility devices used by individuals with disabilities, such as motorized wheelchairs, are allowed depending on the anticipated nature, location and type of use, taking into account the dimensions, weight and operating speed of the device and, if applicable, ability to load into and exit from a gondola car; the risk of potential harm to others by the operation of the device, or harm to the environment or natural resources; or conflict with Federal land management laws and regulations and the ability of the resort to stow the device when not in use.