For any fiscal year, the Secretary of the Interior may use under paragraph (1) not more than $25,000.
The Secretary of the Interior shall not use available amounts under subsection (b) to supplement the funding of any function for which general appropriations are made for the United States Fish and Wildlife Service or any other entity of the Department of the Interior.
The Inspector General of the Department of the Interior shall procure the performance of biennial audits, in accordance with generally accepted accounting principles, of expenditures and obligations of amounts used by the Secretary of the Interior for expenses for administration incurred in implementation of this chapter.
An audit under this subsection shall be performed under a contract that is awarded under competitive procedures (as defined in section 132 of title 41) by a person or entity that is not associated in any way with the Department of the Interior (except by way of a contract for the performance of an audit or other review).
The auditor selected under subparagraph (A) shall report to, and be supervised by, the Inspector General of the Department of the Interior, except that the auditor shall submit a copy of the biennial audit findings to the Secretary of the Interior at the time at which the findings are submitted to the Inspector General of the Department of the Interior.