United States Code, 2006 edition. Supplement 2 : containing the general and permanent laws of the United States, enacted during the 110th Congress, January 4, 2007 to January 5, 2009 / prepared and published under authority of Title 2, U. S. Code, section 285b, by the Office of the Law Revision Counsel of the House of Representatives. Vol. 4 : Title 43 — Public lands to Title 50 — War and national defense, popular names, tables, and index