31 U.S.C. § 3112 - U.S. Code - Unannotated Title 31. Money and Finance § 3112. Sinking fund for retiring and cancelling bonds and notes

(1) the interest that would have been payable during the fiscal year for which the appropriation is made on the bonds and notes bought, redeemed, or paid out of the fund during that or prior years;

(2) 2.5 percent of the total amount of bonds and notes issued under the First Liberty Bond Act, the Second Liberty Bond Act, the Third Liberty Bond Act, the Fourth Liberty Bond Act, and the Victory Liberty Loan Act and outstanding on July 1, 1920, less an amount equal to the par amount of obligations of governments of foreign countries that the United States Government held on July 1, 1920; and

(3) 2.5 percent of the total amount expended after June 29, 1933, from appropriations made or authorized in sections 301 and 302 of the Emergency Relief and Construction Act of 1932.