The Federal Open Market Committee (FOMC), a component of the Federal Reserve System, is charged under U.S. law with overseeing open market operations in the United States, and is the principal tool of US national monetary policy. (Open market operations are the buying and selling of government securities.) The Committee sets monetary policy by specifying the short-term objective for those operations, which is currently a target level for the federal funds rate (the rate that commercial banks charge on overnight loans among themselves). The FOMC also directs operations undertaken by the Federal Reserve System in foreign exchange markets, although any intervention in foreign exchange markets is coordinated with the U.S. Treasury, which has responsibility for formulating U.S. policies regarding the exchange value of the dollar.