Release Notes
10/20/2026
PTR2 Release Notes_DD_10_24_26
Presentations
10/20/2026
PCC National Monthly Touchpoint (October)
Announcements
10/19/2026
DELIVERY - Akron Post Office (35441) Permanently Suspended
Announcements
10/19/2026
INFORMATIONAL - Executive Detail - Vice President, Strategic Sales - Sara Bambrough
Announcements
10/19/2026
INFORMATIONAL - FY2027 Peak Season Network Update Webinars
Announcements
10/19/2026
Delivery - Southern Area Alabama-Mississippi District Walnut Grove PO 35990 Temporarily Suspended
Announcements
10/19/2026
Delivery - Southern Area – Florida 1 – Valparaiso 32580 Temporary Service Suspension
Release Notes
10/19/2026
October 25 2026 EPS 8.8.0.0 Release Notes
Release Notes
10/19/2026
October 18 2026 PO! 64.1.2.0 Release Notes
Data Files
10/19/2026
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 the current fiscal year.

 

*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.

Data Files
10/19/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
10/19/2026
PTR Domestic Scan Events and Descriptions
Data Files
10/19/2026
City/State ZIP Code Weekly Compare
Release Notes
10/19/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Release Notes

These release notes summarize new features and enhancements implemented in deployments to the IV-MTR application.

Data Files
10/19/2026
3 Digit ZIP/AISU Office List (AISUREPT.TXT)
Data Files
10/19/2026
AIS Congressional District File (CONG_DIST.TXT)
Data Files
10/19/2026
AIS County Name Table Layout (AISCNTY.TXT)
Data Files
10/19/2026
AMS County Name Table (COUNTY_NAME_TABLE.TXT)
Data Files
10/19/2026
AMS Address Report: AISU Mailing List (ADDRREPT.TXT)
Data Files
10/19/2026
AISU ZIP Code Record and AISU Address Record Descriptions (AISULOUT.TXT)
Data Files
10/19/2026
AISU ZIP Code File (AISUZIPS.TXT)
Data Files
10/19/2026
AISU Contact Information (AISUADDR.TXT)
Data Files
10/19/2026
Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)
Data Files
10/19/2026
Area District Finance File (AREADIST.TXT)
Data Files
10/19/2026
Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)
Data Files
10/19/2026
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Announcements
10/16/2026
DELIVERY - Southern Area -Texas 2 District - Matagorda Post Office (77457) Resuming Operations
Announcements
10/16/2026
Step Into Leadership: Apply Now for the USPS National AIM Industry
Announcements
10/16/2026
INFORMATIONAL - Commercial System Releases – Week of October 24, 2026
Release Notes
10/16/2026
PTR1 Release Notes_DD_10_17_26
Announcements
10/16/2026
INFORMATIONAL - RESOLVED - PostalOne! System – INCIDENT 11118454 Extended Processing Times for Large Mail.XML Mailings
Announcements
10/15/2026
INFORMATIONAL - New Commercial Organization
Announcements
10/15/2026
INFORMATIONAL - Chief Processing & Distribution Office Reorganization
Announcements
10/15/2026
INFORMATIONAL - USPS APIs System Release Notification – October 15, 2026
Announcements
10/15/2026
INFORMATIONAL - USPS APIs System Release Notification October 28, 2026
Announcements
10/15/2026
DELIVERY - Southern Area - FL1 District - 3 Digit Zip Code Area 324 & 325 All Operations Restored
Applications/ Forms
10/15/2026
PCCAC Candidate Application 9.28.2026
Contact Lists
10/15/2026
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)

This document outlines the CASS/MASS certified vendors list for RDI™ Cycle O.

Contact Lists
10/15/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Data File Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: M L O C R Service Bureaus Data File Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: M L O C R Service Bureaus Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Data File Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: Z4CHANGE Data File Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: Z4CHANGE Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: Vendor/Service Licensees Data File Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: Vendor/Service Bureaus Licensees Cycle O - (Expires July 31, 2028)
Contact Lists
10/15/2026
CASS™ Certified Products Guide: DSF2® Licensees Data File Cycle O - (Expires July 31, 2028)