FAQs
04/11/2025
Intelligent Mail Matrix Barcode (IMmb) FAQ Page

The IMmb is a two-dimensional, GS1 DataMatrix barcode used for routing and tracking of packages within the USPS processing network.  Presently the IMmb is used in combination with the Intelligent Mail Package Barcode (IMpb) to improve processing efficiency. 

Applications/ Forms
04/11/2025
Address Matching System API (AMS API) License Agreement Modifications

This Modifications document lists the changes to the current Address Matching System Application Program Interface (AMS API) Product License Agreement.

Applications/ Forms
04/11/2025
Address Matching System API (AMS API) Sample License Agreement

United States Postal Service® sample license agreement for the Address Matching System Application Program Interface (AMS API) Product.

User Guides
04/10/2025
Informed Visibility Data Feed Instructions
Announcements
04/10/2025
DELIVERY - Southern Area – AR-OK District - Williford Post Office – Temporarily Suspended
Announcements
04/09/2025
INFORMATIONAL - USPS APIs Cloud Environment Scheduled Maintenance
Announcements
04/09/2025
INFORMATIONAL: July 2025 Market Dominant Price Change Filing Webinar - Friday, April 11, 2025 @ 1:00 pm (EST)
Announcements
04/09/2025
INFORMATIONAL: Scheduled Commercial Systems Activities - April 13, 2025
Announcements
04/09/2025
INFORMATIONAL: Organization Realignment - Sales and Strategic Accounts
Announcements
04/08/2025
INFORMATIONAL: USPS APIs System Deployment - April 9, 2025
Announcements
04/08/2025
Post Office/ZIP Code Entries for Postal Bulletin 4/17/2025

This spreadsheet provides details on the Post Office/ZIP Code entry changes for Postal Bulletin issue 4/17/2025.

Announcements
04/08/2025
PCC Tools for Membership Growth
Announcements
04/07/2025
PROCESSING AND DISTRIBUTION: Southern Area - Memphis, TN MPA - Power Restored
Announcements
04/07/2025
DELIVERY: Southern Area - Georgia District - Martin Post Office (30557) - Temporarily Suspended
Announcements
04/07/2025
INFORMATIONAL: Key Personnel Announcements - Board of Governors and Labor Relations
Announcements
04/07/2025
INFORMATIONAL: Key Personnel Announcements - Board of Governors and Labor Relations
Announcements
04/04/2025
INFORMATIONAL: 2025 National Postal Forum Online Registration Extended
Announcements
04/04/2025
2025 National Postal Forum – Online Registration Extended
Contact Lists
04/04/2025
Central Areas AIM Leadership Team
Announcements
04/03/2025
PROCESSING AND DELIVERY: Southern Area: Power Outage - Memphis, TN - Mail Processing Annex (MPA)
Announcements
04/03/2025
DELIVERY: Southern Area - AR-OK District - Boles Post Office (72926) - Temporarily Suspended
Presentations
04/03/2025
The New Launch Procedure Presentation

New Launch Procedure Presentation

Presentations
04/03/2025
The New Launch Procedure
Announcements
04/02/2025
Promotions Alert: 4/2/2025
Announcements
04/02/2025
Promotions Alert: 4/2/2025