43 C.F.R. § 2932.5
Actual expenses means money spent directly on the permitted activity. These may include costs of such items as food, rentals of group equipment, transportation, and permit or use fees. Actual expenses do not include the rental or purchase of personal equipment, amortization of equipment, salaries or other payments to participants, bonding costs, or profit.
Commercial use means recreational use of the public lands and related waters for business or financial gain.
(1) The activity, service, or use is commercial if—
(3) Use of the public lands by scientific, educational, and therapeutic institutions or non-profit organizations is commercial and subject to a permit requirement when it meets any of the threshold criteria in paragraphs (1) and (2) of this definition. The non-profit status of any group or organization does not alone determine that an event or activity arranged by such a group or organization is noncommercial.
Competitive use means—
(1) Any organized, sanctioned, or structured use, event, or activity on public land in which 2 or more contestants compete and either or both of the following elements apply:
Organized group activity means a structured, ordered, consolidated, or scheduled event on, or occupation of, public lands for the purpose of recreational use that is not commercial or competitive.
Special area means:
Vending means the sale of goods or services, not from a permanent structure, associated with recreation on the public lands or related waters, such as food, beverages, clothing, firewood, souvenirs, photographs or film (video or still), or equipment repairs.