1. Short title This Act may be cited as the Currency Optimization, Innovation, and National Savings Act of 2017 . 2. GAO study on the production of the penny (a) Study The Comptroller General of the United States shall carry out a study on the production cost of the one-cent coin and ways the production cost could be lowered while maintaining the utility of the one-cent coin. (b) Report Not later than 180 days after the date of enactment of this Act, the Comptroller General shall issue a report to the Committee on the Budget and the Committee on Banking, Housing, and Urban Affairs of the Senate and the Committee on the Budget and the Committee on Financial Services of the House of Representatives containing all findings and determinations made in carrying out the study required under subsection (a). 3. 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