The United States Postal Service (also known as USPS, the Post Office or U.S. Mail) is an independent agency of the U.S. government responsible for providing postal service in the United States. It is one of the few government agencies explicitly authorized by the U.S. Constitution.
See also Edit
- First-class Mail
- Direct mail
- Implications of Electronic Mail and Message Systems for the U.S. Postal Service
- Registered Mail
- Snail mail
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