Fund (referred to in this section as the Fund ). (b) Funding For each of fiscal years 2024 through 2027, the Secretary of the Treasury shall transfer from the general fund of the Treasury to the Fund $187,500,000. (c) Availability of funds Amounts in the Fund shall be available to the Secretary of the Interior, acting through the Director of the United States Fish and Wildlife Service (referred to in this section as the Secretary ), as provided in subsection (e), without further appropriation or fiscal year limitation. (d) Investment of amounts (1) In general The Secretary may request the Secretary of the Treasury to invest any portion of the Fund that is not, as determined by the Secretary, required to meet the current needs of the Fund. (2) Requirement An investment requested under paragraph (1) shall be made by the Secretary of the Treasury in a public debt security— (A) with a maturity suitable to the needs of the Fund, as determined by the Secretary