Notes and Bonds Contact the Bureau of Public Debt . Treasury Bill rates and other major interest rates Contact the Federal Reserve Board . Tax and Tax Refund Questions Contact the Internal Revenue Service . Coins, Currency, and Dollars For information on coins contact the U.S. Mint . For information on paper currency contact the Bureau of Engraving and Printing .
Site includes an FAQ on damaged and mutilated currency .
Releases and Historical Data Includes foreign exchange rates and selected interest rates including the Bank prime loan rates, Treasury bill rates, exchange rates, and money supply figures. Inflation Rates from the Bureau of Labor Statistics Includes the Consumer Price Index and the Producer Price Index.