16 USC 539f - Nonprofit organization user of national forest lands

(a) Permits for organization camps; waiver of charges; performance of services; loss of entitlement 
Notwithstanding any other provision of law, the Secretary of Agriculture is directed to waive annually without charge all or a portion of payment or rental fees required under terms of a permit for use of certain lands of the National Forest System as organization camps by local units of the Boy Scouts of America or such other nonprofit">nonprofit organization when such local units of the Boy Scouts of America or such nonprofit">nonprofit organization are willing to perform services, as the Secretary prescribes and determines will yield a valuable benefit to the public and to the program of the Secretary of such lands. If the Secretary determines that a local unit of the Boy Scouts of America or such other nonprofit">nonprofit organization has not fully performed such services, such organization shall not be entitled in the subsequent year to waiver under the provisions of this section.
(b) “Other nonprofit">nonprofit organization” defined 
The term other nonprofit">nonprofit organization shall mean
(1)  a nonprofit">nonprofit organization holding an exemption under section 501 (c) of title 26; and
(2)  a nonprofit">nonprofit association or nonprofit">nonprofit corporation, which is not controlled or owned by profitmaking corporations or business enterprises, and which is engaged in public or semipublic activity to further public health, safety, or welfare.