USPS Says Bye to Ancient Manifest Mailing, Hello Modernity
Published Date: 9/12/2025
Proposed Rule
Summary
The Postal Service is retiring the old Manifest Mailing System (MMS), which means mailers will need to switch to newer ways to send their bulk mail. This change affects businesses and organizations that use MMS to handle large mailings. The update will happen soon, so get ready to save time and avoid any extra costs by moving to the new system.
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Postal Service Retires MMS
The Postal Service is retiring the old Manifest Mailing System (MMS), so businesses and organizations that use MMS for large or bulk mailings will need to switch to newer ways of submitting their mail. The agency says you should prepare soon and that moving to the new system can save time and help you avoid extra costs.
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Key Dates
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