16 U.S. Code § 6304 - Great Ape Conservation Fund
Subject to paragraph (2), upon request by the Secretary, the Secretary of the Treasury shall transfer from the Fund to the Secretary, without further appropriation, such amounts as the Secretary determines are necessary to provide assistance under section 6303 of this title.
The Secretary of the Treasury shall invest such portion of the Fund as is not, in the judgment of the Secretary of the Treasury, required to meet current withdrawals. Investments may be made only in interest-bearing obligations of the United States.
Any obligation acquired by the Fund may be sold by the Secretary of the Treasury at the market price.
The amounts required to be transferred to the Fund under this section shall be transferred at least monthly from the general fund of the Treasury to the Fund on the basis of estimates made by the Secretary of the Treasury.
The Secretary may accept and use donations to provide assistance under section 6303 of this title. Amounts received by the Secretary in the form of donations shall be transferred to the Secretary of the Treasury for deposit into the Fund.