16 USC § 718k
Use of fees collected for Federal migratory bird permits
through Pub. L. 116-344, except Pub. Ls. 116-260 and 116-283
On and after October 21, 1998, all fees collected for Federal migratory bird permits shall be available to the Secretary, without further appropriation, to be used for the expenses of the U.S. Fish and Wildlife Service in administering such Federal migratory bird permits, and shall remain available until expended.