Usps Postal Rates 2024 Media Mail. Washington, dc — today, the u. In addition to the enclosures and additions listed in 4.2 for media mail and 5.4 for library mail, any printed matter that is mailable as usps marketing mail may be.

Washington, dc — today, the united states postal service filed notice with the postal regulatory commission (prc) of mailing services price changes to take. If you try to include anything that’s.