16 U.S. Code § -
(a) Fish and Wildlife Service
(A) In general
Subject to such terms and conditions as the Secretary may prescribe, the Secretary may issue a special use authorization to the United States Fish and Wildlife Service for the management by the Service of facilities and land agreed on by the Secretary and the Secretary of the Interior.
(i) In general Reasonable admission and use fees may be charged for all areas administered by the United States Fish and Wildlife Service.
(ii) Deposit The fees shall be deposited in accordance with section 460lll–24 of this title.
The Secretary and the Secretary of the Interior may cooperate or act jointly on activities such as population monitoring and inventory of fish and wildlife with emphasis on migratory birds and endangered and threatened species, environmental education, visitor services, conservation demonstration projects and scientific research.
(3) Subordination of fish and wildlife activities to overall management
The management and use of areas and facilities under permit to the United States Fish and Wildlife Service as authorized pursuant to this section shall be subordinate to the overall management of the Recreation Area as directed by the Secretary.
For the management, maintenance, operation, and interpretation of the Recreation Area and its facilities, the Secretary may—
(1) make grants and enter into contracts and cooperative agreements with Federal agencies, governmental units, nonprofit organizations, corporations, and individuals; and