International postal arrangements

§ 505. International postal arrangements (a) For the purpose of making better postal arrangements with other countries, or to counteract their adverse measures affecting our postal intercourse with them, the Postmaster General, by and with the advice and consent of the President, may negotiate and conclude postal treaties or conventions, and may reduce or increase the rates of postage or other charges on mail matter conveyed between the United States and other countries. The decisions of the Postmaster General construing or interpreting the provisions of any treaty or convention which has been or may be negotiated and concluded shall, if approved by the President, be final and conclusive upon all officers of the United States. (b) The Postmaster General shall transmit a copy of each postal convention concluded with other governments to the Secretary of State, who shall furnish a copy of the same to the Public Printer for publication. The Department shall revise the printed proof sheets of all such conventions.