39 CFR § 1.1 - Establishment of the U.S. Postal Service.
The U.S. Postal Service is established under the provisions of the Postal Reorganization Act (the Reorganization Act) of 1970, Public Law 91-375, 84 Stat. 719, as amended by the Postal Accountability and Enhancement Act of 2006 (PAEA), Public Law 109-435, 120 Stat. 3198, as an independent establishment of the executive branch of the Government of the United States, under the direction of a Board of Governors, with the Postmaster General as its chief executive officer. The Board of Governors of the Postal Service (the Board) directs the exercise of its powers through management that is expected to be honest, efficient, economical, and mindful of the competitive business environment in which the Postal Service operates. The Board consists of nine Governors appointed by the President, by and with the advice and consent of the Senate, to represent the public interest generally, together with the Postmaster General and Deputy Postmaster General.