The United States Mint conducts research and issues reports periodically. Reports are often at the request of Congress
or as required by law.
- R&D Biennial Report (2014): The United States Mint released its 2014 Biennial Report to Congress in December 2014 on the research and development (R&D) of alternative metals for the nation’s circulating coins.
- R&D Biennial Report (2012): United States Mint Releases Findings on Alternative Metals Study – Additional R&D Required Before Making Recommendations