Article Title: The Postal Service has a special exemption in the Freedom of Information Act
Snippet of Article: "...The Freedom of Information Act, or FOIA, enables a person to access federal agency records, but certain information is exempt from disclosure.
The Postal Service has a special exemption that allows the organization to withhold commercial information if it would not be good business practice to publicly disclose that information. ...Code of Federal Regulations."
Source: news.usps.com