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Manifest Mailing System

The Manifest Mailing System (MMS) is an automated system that allows a mailer to document postage and fees for all pieces in a mailing paid via permit imprint indicia.

Who is the Mailing Manifest System for?

To participate in the MMS, the mailer must develop or use a computerized system that generates documentation to support mailings.

First Class Mail
Parcels
Periodicals
Standard Mail

Description

Manifest mailing is an automated system that allows a mailer to document postage and fees for all pieces in a mailing paid via permit imprint indicia. Each piece in the mailing is assigned a unique identification number that may be compared with the manifest. Using a permit imprint indicia eliminates the need to affix postage (metered or stamped). The MMS may be used to pay domestic or international postage, as well as fees for extra services.

What May Be Manifested?

All classes of domestic mail, except Priority Mail Express® items and Periodicals, qualify for manifest mailing under the standards in Publication 401: Guide to the Manifest Mailing System. Manifesting for International mail is limited to First-Class Mail International™ and Priority Mail International™. Priority Mail Express may be manifested under the standards of Publication 97, Express Mail Manifesting Technical Guide. Consult Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM®) and Mailing Standards of the United States Postal Service, International Mail Manual (IMM®) for the requirements for eligibility, mail preparation, processing categories, price markings, and endorsements.

To participate in the MMS program, the mailer must develop or use a computerized system that generates documentation to support mailings. This documentation must meet postal standards for format, completeness, accuracy, timeliness, and proper payment of postage. The mailer may present manifest documentation in hardcopy or in an electronic format (see Publication 401: Guide to the Manifest Mailing System, Chapter 4).

To set up and maintain an MMS, the mailer will need to:

  • Plan, develop, test, and install a computer system in-house or acquire a system from a vendor, including systems that are Internet based.
  • Develop and administer effective quality control procedures that ensure the integrity of the system (see see Publication 401: Guide to the Manifest Mailing System, Chapter 3).
  • Enhance or modify the system as necessary to allow for adjustments, such as changes in postage prices, presort requirements, or zones.
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Featured Resources

  • Publications 02/07/2017

    Publication 401: Guide to the Manifest Mailing System

    This publication provides information on the Manifest Mailing System, which automates the documentation of postage and fees for all pieces in a mailing paid via permit imprint indicia.

  • Applications/ Forms 02/07/2017

    Manifest Mailing Application

    Before completing the Manifest Mailing System Application, review Publication 401: Guide to the Manifest Mailing System.

Contact

Mailers may contact the local Post Office™ for information regarding manifest mailing. Mailers may also call the National Customer Support Center at 800-238-3150 — ask for the “MAC™ Department” to be connected with a specialist who can provide the telephone number for the “Manifest Mailing Team” in their area. The mailer will need to provide the ZIP Code™ of the Post Office where they will deposit their manifest mailings.

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