United States code. Supplement 2 : containing the general and permanent laws of the United States, enacted during the 107th Congress, 2nd session : January 2, 2001, to January 6, 2003 / 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. 2 : Title 19 - customs duties to title 39 - postal services