4  See Board of Governors of the Federal Reserve System (2009), Supervision and Regulation Letter SR 09-4, "Applying Supervisory Guidance and Regulations on the Payment of Dividends, Stock Redemptions, and Stock Repurchases at Bank Holding Companies," February 24 (as revised on March 27, 2009).
Alan Greenspan: The payments system in transition Remarks by Mr Alan Greenspan, Chairman of the Board of Governors of the US Federal Reserve System, at the Federal Reserve Payments System Development Committee 2003 Conference, Washington, DC, 29 October 2003.