This excerpt taken from the NDAQ 8-K filed Aug 3, 2006.
Sec. 7.9 The President shall, in the absence of the Chair of the Board and the Chief Executive Officer, preside at all meetings of the Board and stockholders at which the President is present. The President shall have general supervision over the business and affairs of the Corporation. The President shall have all powers and duties usually incident to the office of the President, except as specifically limited by a resolution of the Board. The President shall exercise such other powers and perform such other duties as may be assigned to the President from time to time by the Board.