05/20/2026
05/20/2026
05/20/2026
05/20/2026
July 2026 Release Overview
Note: For the latest technical specifications, please see the July 2026 Price Change Release Notes as they are published. Mail.dat and Mail.XML updates required for this release.
05/19/2026
05/19/2026
05/19/2026
05/19/2026
05/19/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Development Tracker
This document provides a list of active IV-MTR work to be as well as items completed in FY25.
*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.
05/18/2026
05/18/2026
05/18/2026
05/18/2026
05/18/2026
05/17/2026
05/15/2026
05/15/2026
05/15/2026
05/15/2026
05/15/2026
05/15/2026
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.
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
05/14/2026
05/14/2026
05/13/2026
05/13/2026
05/12/2026
Emerging Roads Order Form
The USPS Emerging Roads™ order form is coming soon.
05/12/2026
05/12/2026
05/11/2026
05/11/2026
05/11/2026
05/11/2026
Automated Zone Indicator (AZI) Table
The AZI table lists each five-digit ZIP Code™ and is an indicator of the type of processing that typically takes place on letter mail destined for each ZIP Code. Each number in the file is a ZIP Code appended with a numeric zone indicator. The five numeric indicators are as follows:
- Two Pass Zones: Automated two-step sector/segment at mail processing facilities
- 876 Carrier Route Sort Zones: Automated incoming secondary carrier route sorting at plants
- Carrier Route Barcode Sorter (CSBCS) Zones: Automated walk sequence sorting on CSBCS machines at delivery units
- Delivery Barcode Sorter (DBCS) Zones: Automated walk sequence sorting on DBCS machines at plants [i.e., sectional center facilities (SCFs)] or at delivery units
- Manual/Mechanized Zones: No automated sorting; no tracking code scans should be generated from facilities matched to these ZIP Codes
05/11/2026
Cumulative Listing of ZIP Codes Covered by the LACS Database
This document provides a cumulative listing of ZIP Codes covered by the LACS database for LACSLink®.
05/08/2026
05/06/2026
05/06/2026
05/06/2026
05/06/2026
05/02/2026
05/01/2026
05/01/2026
05/01/2026
April 2026 Nixie Volume
This spreadsheet contains the UAA statistics for April 2026.
05/01/2026
ZIP Codes by Area and District codes
The Excel spreadsheet lists ZIP Codes with the associated Area and District Codes.
04/30/2026
04/30/2026
04/30/2026
04/30/2026