104 STAT. 1064 PUBLIC LAW 101-454—OCT. 24, 1990 guaranteed as to both principal and interests by the United States. For such purpose, such obligations may be acquired (1) on original issue at the issue price, or (2) by purchase of outstanding obligations at the market price. The purposes for which obligations of the United States may be issued under chapter 31 of title 31, are hereby extended to authorize the issuance at par of special obligations exclusively to the fund. Such special obligations shall bear interest at a rate equal to the average rate of interest, computed as to the end of the calendar month next preceding the date of such issue borne by all marketable interest-bearing obligations of the United States then forming a part of the public debt; except that where such average rate is not a multiple of one-eighth of 1 percent, the rate of interest of such special obligations shall be the multiple of one-eighth of 1 percent next lower than such average rate. Such special obligations shall be issued only if the Secretary determines that the purchase of other interest-bearing obligations of the United States, or of obligations guaranteed as to both principal and interest by the United States or original issue or at the market price, is not in the public interest. (c) SALE AND REDEMPTION OF OBLIGATIONS.— Any obligation acquired by the fund (except special obligations issued exclusively to the fund) may be sold by the Secretary of the Treasury at the market price, and such special obligations may be redeemed at par plus accrued interest. (d) CREDIT TO THE FUND OF INTEREST AND PROCEEDS OF SALE OR REDEMPTION.—The interest on, and the proceeds from the sale or redemption of, any obligations held in the fund shall be credited to and form a part of the fund. 20 USC 5203. SEC. 4. EXPENDITURE AND AUDIT OF TRUST FUND. (a) AUTHORIZATION OF FUNDING.— For each fiscal year, there is authorized to be appropriated from the fund to Eisenhower Exchange Fellowships, Incorporated, the interest and earnings of the fund. (b) ACCESS TO BOOKS, RECORDS, ETC. BY GENERAL ACCOUNTING OFFICE. —The activities of Eisenhower Exchange Fellowships, Incorporated, may be audited by the General Accounting Office under such rules and regulations as may be prescribed by the Comptroller General of the United States. The representatives of the General Accounting Office shall have access to all books, accounts, records, reports, and files and all other papers, things, or property belonging to or in use by Eisenhower Exchange Fellowships, Incorporated, pertaining to such activities and necessary to facilitate the audit. 20 USC 5204. SEC. 5. AUTHORIZATION OF APPROPRIATIONS. To provide a permanent endowment for the Eisenhower Exchange Fellowship Program, there are authorized to be appropriated to the Eisenhower Exchange Fellowships Program Trust Fund— (1) $5,000,000; and (2) the lesser of— (A) $2,500,000, or (B) an amount equal to contributions to Eisenhower Exchange Fellowships, Incorporated, from private sector sources during the 4-year period beginning on the date of enactment of this Act.