Pub. L. 102-281, tit. II, sec. 203
SOURCES OF BULLION.
SEC. 203. SOURCES OF BULLION. (a) Gold.—The Secretary shall obtain gold for the coins minted under this title pursuant to the authority of the Secretary under existing law. (b) Silver.—The Secretary shall obtain silver for the coins minted under this title from stockpiles established under the Strategic and Critical Materials Stock Piling Act (50 U.S.C. 98 et seq.).