Federal Courts of Appeals Modernization Act This bill establishes a Commission on Structural Alternatives for the Federal Courts of Appeals to: (1) study the present division of the U.S. courts of appeals, with particular references to the U.S. Court of Appeals for the Ninth Circuit; and (2) submit to the President and Congress recommendations for changes in circuit boundaries or structure for the expeditious and effective disposition of the caseload of such courts. The commission shall be composed of five members appointed by the Chief Justice of the United States.