This chapter described the Federal Reserve System in the United States. The Federal Reserve is the central bank charged with conducting monetary policy, supervising and regulating depository institutions, maintaining the stability of the financial system, and providing specific financial services to the U.S. government, the public, and financial institutions. We reviewed the structure under which the Fed provides these functions, the monetary policy tools it uses, and the impact of monetary policy changes on credit availability, interest rates, money supply, security prices, and foreign exchange rates.