The United States Postal Service Office of Inspector General (OIG) was created by Public Law 104–208,[2] passed by Congress in 1996.

The inspector general of the United States Postal Service (USPS) is appointed by the presidentially appointed governors on the Board of Governors of the United States Postal Service and reports to them.

To ensure accountability, the inspector general keeps Congress, the governors, and Postal Service management informed of the office's work and alerted to potential areas where the Postal Service could be more economical and efficient.

Investigations help prevent and detect fraud, waste, and misconduct and have a deterrent effect on postal crimes.

[3] The United States Postal Inspection Service is a separate agency.