Who has control over the post offices?

In the United States, the United States Postal Service (USPS) operates independently but is overseen by the Postal Regulatory Commission and is subject to Federal Laws. The USPS is an independent establishment of the executive branch of the U.S. government, and its operations are managed by a Board of Governors. Ultimately, the President of the United States appoints the governors, and Congress has the authority to legislate postal services.