Data Files
Labeling List File *Moved*

Please note that this file has been moved to https://postalpro.usps.com/operations/labeling-lists/changes-september-2025. We apologize for the inconvenience. 

User Guides
PCC Membership Best Practices Guide

This PCC Membership Drive Best Practice Guide aims to equip PCCs with proven best practices to host successful membership drives. 

Last Updated July 2026


Industry Events
The Mailers’ Technical Advisory Committee (MTAC) and the United States Postal Service (USPS) host industry engagement events to facilitate collaboration, provide technical updates, and address mailing and shipping industry needs.