36 C.F.R. § 71.10
(a) Special recreation permits may be required in accordance with procedures established by the administering bureaus for specialized recreation uses, such as, but not limited to, group activities, recreation events, and the use of motorized recreation vehicles. In any instance where such a permit is required, the following conditions must be satisfied:
(b) Fees for special recreation permits shall be established by all outdoor recreation bureaus of the Department of the Interior issuing such permits in accordance with the following criteria: