- protecting the privacy of the mail
- selecting postal routes
- setting postage rates
The Post Office Act of 1792 codified the presumption that Congress would retain primary control over postal policy--a presumption that remained a cornerstone of that policy until the service was restructured under the Postal Reorganization Act of 1970. The Postal Service Act was a piece of United States federal legislation that established the United States Post Office Department. It was signed into law by President George Washington on February 20, 1792.