22 U.S.C. § 276dd
Income from property covered into Treasury; disbursement and investment
The income from any property held or administered by the board, as and when collected, shall be deposited in the Treasury of the United States to the credit of the trust fund established pursuant to section 276bb of this title, and it shall be and remain subject to investment, reinvestment, and disbursement by the board for the uses and purposes set forth herein.