The Bureau of Engraving and Printing is responsible for paper currency and the United States Mint for all coinage. Incidentally, the Federal Reserve has nothing to do with the process.
Anyway, could I just add as an observer that legislation which is so specific in this vein is rather unworkable. Much better, in my opinion, to leave the decisions on denominations to the respective agencies, and if the Congress wishes to institute a commemorative coinage series for example, that could easily be done through legislation.
Whoops, my mistake. Still doesn't change the inflation concerns though; we wouldn't want something like this to happen.
It doesn't really matter, but I thought I'd share a factoid!
You're absolutely right, of course, that the Federal Reserve controls and influences the flow of money in the money market.