Contact Lists
04/16/2026
Mail Service Provider (MSP) - Full-Service Certified Mailers

A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet

 

Announcements
04/15/2026
2026 Small Business Symposium at NPF

Join us at the 2026 Small Business Symposium hosted at the National Postal Forum. Learn how small businesses leverage mail and shipping solutions to find success!

Fact Sheets
04/15/2026
Pay Permit Fees and Auto-Fee Renewal Fact Sheet

Please note that the BCG user must be the BSA or BSA delegate for manage mailing activity and be the EPS administrator or payment manager to use this service.

Data Files
04/15/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Operation Codes List

This spreadsheet provides a list of operation codes (opcodes), also known as Scan Event Codes, for the IV-MTR application.

Publications
04/15/2026
Appendix B: ACS™ Frequently Asked Questions

This document provides frequently asked questions (FAQs) and answers about the Intelligent Mail® Barcode, Traditional ACS™, OneCode ACS™, Full Service ACS™, Single Source ACS™, and the Intelligent Mail® Package Barcode (IMpb).

Tech Guides
04/14/2026