Data Files
05/18/2026
05/18/2026
Data Files
05/18/2026
05/18/2026
Data Files
05/18/2026
05/18/2026
Data Files
05/18/2026
05/18/2026
Data Files
05/18/2026
05/18/2026
Move to Competitive Street Addressing (MTC SA) List
This .txt file contains the MTC SA List.
Release Notes
05/17/2026
05/17/2026
Announcements
05/15/2026
05/15/2026
Announcements
05/15/2026
05/15/2026
Announcements
05/15/2026
05/15/2026
Announcements
05/15/2026
05/15/2026
Announcements
05/15/2026
05/15/2026
Announcements
05/15/2026
05/15/2026
Release Notes
05/15/2026
05/15/2026
Announcements
05/15/2026
05/15/2026
Post Office/ZIP Code Entries for Postal Bulletin 5/28/2026
This spreadsheet provides details on the Post Office/ZIP Code entry changes for Postal Bulletin issue 5/28/2026.
Contact Lists
05/15/2026
05/15/2026
Business Acceptance Solutions & Major Mailer Support Directory
This document provides a contact list for Business Acceptance Solutions (formerly Business Mailer Support) & Major Mailer Support
Announcements
05/14/2026
05/14/2026
Announcements
05/14/2026
05/14/2026
Release Notes
05/13/2026
05/13/2026
Announcements
05/13/2026
05/13/2026
Applications/ Forms
05/12/2026
05/12/2026
Emerging Roads Order Form
The USPS Emerging Roads™ order form is coming soon.
Announcements
05/12/2026
05/12/2026
Presentations
05/12/2026
05/12/2026
Release Notes
05/12/2026
05/12/2026
USPS APIs Release Notes
For the latest updates, please review the USPS APIs Release Notes.
Announcements
05/11/2026
05/11/2026
Announcements
05/11/2026
05/11/2026