Publications
09/19/2022
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
09/19/2022
Terms and Conditions document for MASS™ Manufacturers

This document outlines the terms and conditions form for MASS™ certification.

Release Notes
09/18/2022
September 18, 2022 System Releases

Mail.Dat Client update is mandatory for this Release.