Pub. L. 112-209, sec. 3 (as amended)
COIN SPECIFICATIONS.
SEC. 3. COIN SPECIFICATIONS.
(a) $1 Silver Coins.—In recognition and celebration of the founding and proud service of the March of Dimes, the Secretary of the Treasury (hereafter in this Act referred to as the “Secretary”) shall mint and issue not more than 500,000 $1 coins, which shall—
(1) weigh 26.73 grams;
(2) have a diameter of 1.500 inches; and
(3) contain 90 percent silver and 10 percent copper.
(b) Legal Tender.—The coins minted under this Act shall be legal tender, as provided in section 5103 of title 31, United States Code.
(c) Numismatic Items.—For purposes of sections 5134 and 5136 of title 31, United States Code, all coins minted under this Act shall be considered to be numismatic items.