; (B) the Director of the United States Mint makes the findings described in paragraph (2); and (C) the 90-day period beginning on the date on which the study is submitted under subparagraph (A) has expired. . 4. Saving taxpayers money by replacing $1 notes with $1 coins (a) In general It is the policy of the United States that $1 coins should replace $1 Federal Reserve notes as the only $1 monetary unit issued and circulated by the Board of Governors of the Federal Reserve System. (b) Final date for placing $1 notes into circulation Beginning on the date that is 2 years after the date of enactment of this Act, the Board of Governors of the Federal Reserve System may not issue $1 Federal Reserve notes. (c) Transition period Before the date described in subsection (b), the Board of Governors of the Federal Reserve System shall ensure adequate supplies of $1 coins to meet the demand of such coins on and after such date. (d) Removal and destruction of $1 Federal reserve notes The Board of Governors of the Federal Reserve System shall ensure that all $1 Federal Reserve notes removed from circulation in accordance with the date described in subsection (b) have been destroyed. (e) Exception Notwithstanding subsections (b) and (c), the Board of Governors of the Federal Reserve System shall produce such Federal Reserve notes of $1 denomination as the Board of Governors determines from time to time are appropriate solely to meet the needs of numismatic collectors of that denomination. Such collectible versions of $1 Federal Reserve notes shall be sold in accordance with other general provisions governing collectible versions of notes. (f) No effect on legal tender Notwithstanding any other provision of this section, $1 Federal Reserve notes are legal tender in the United States for all debts, public and private, public charges, taxes, and duties, regardless of the date of printing or issue.