INFORMATIONAL - USPS APIs System Release May 21, 2026

Mail.xml Technical Specifications R64.0.0.0

Mail.dat Technical Specifications R64.0.0.0

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. 

PCC National Monthly Touchpoint (May)

PCC National Monthly Touchpoint Recording (May)

Passcode: S+?yXQe3

INFORMATIONAL - Mailer Scorecard - Temporarily Unavailable

INFORMATIONAL - Updated - 2026 Labeling List and Mail Direction File (MDF) Timeline

PTR2 Release Notes_DD_05_19_26

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.

May 31 2026 EPS/eBill R8.4.0.0 Release Notes

IMpb (Intelligent Mail® Package Barcode & IMmb (Intelligent Mail® Matrix Barcode) Verification Fact Sheet

DELIVERY - International Service Resumption Notice – Effective May 19, 2026

INFORMATIONAL - USPS APIs System Release - Rescheduled May 28, 2026

INFORMATIONAL - USPS APIs System Release May 26, 2026

May 17 2026 PostalOne! R63.2.2.0; Crosswalk R10.0.1.0 & USPS Ship R27.0.0.0 Release Notes

INFORMATIONAL: Business Customer Gateway (BCG) – [INCIDENT # 10666547] Customer Validation Tool Query Errors – Resolved

INFORMATIONAL: Business Customer Gateway (BCG) – [INCIDENT # 10666547] Customer Validation Tool Query Errors

INFORMATIONAL: Enterprise Payment System (EPS) System – [INCIDENT # 10664537] EPS Delayed ACH Debit and Credit Card Transaction Processing Issue Resolved

PROCESSING & DISTRIBUTION: Memphis, TN Regional Processing & Distribution Center (RPDC) Expands Operations - May 16, 2026

INFORMATIONAL: Commercial System Releases (May 23 - May 29)

INFORMATIONAL: USPS APIs System Release - May 20, 2026

May 27 2026 USPS Ship R27.0.1.0 Release Notes

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.

Business Acceptance Solutions & Major Mailer Support Directory

This document provides a contact list for Business Acceptance Solutions (formerly Business Mailer Support) & Major Mailer Support

INFORMATIONAL - Package Tracking API Provisioning Reminder

INFORMATIONAL - Reminder - USPS Enhanced Addresses API – Coming July 2026

PTR2 Release Notes_DD_05_14_26

DELIVERY - International Service Resumption Notice - Effective May 15, 2026

Emerging Roads Order Form

The USPS Emerging Roads™ order form is coming soon.

INFORMATIONAL - Registration Deadline - Mail Growth Incentives 2026

July 2026 Market Dominant Price Change Filing Webinar Q&As

INFORMATIONAL: Changes to USPS Dimensional (DIM) Weight Calculation

INFORMATIONAL: U.S. Postal Service Recommends Competitive Price Changes for July 2026

INFORMATIONAL - EXECUTIVE ANNOUNCEMENT – Janine H. Egloff - Senior Director, Product Acceptance and Support

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:

1. Two Pass Zones: Automated two-step sector/segment at mail processing facilities
2. 876 Carrier Route Sort Zones: Automated incoming secondary carrier route sorting at plants
3. Carrier Route Barcode Sorter (CSBCS) Zones: Automated walk sequence sorting on CSBCS machines at delivery units
4. Delivery Barcode Sorter (DBCS) Zones: Automated walk sequence sorting on DBCS machines at plants [i.e., sectional center facilities (SCFs)] or at delivery units
5. Manual/Mechanized Zones: No automated sorting; no tracking code scans should be generated from facilities matched to these ZIP Codes

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 LACS^Link®.

INFORMATIONAL: Commercial System Releases - May 16th - 22nd

INFORMATIONAL - USPS APIs System Release – May 10, 2026

INFORMATIONAL - USPS API System Maintenance Release Notice – May 9, 2026

INFORMATIONAL - Central Area AIM’s Meeting June 30, 2026

DELIVERY - International Service Resumption Notice effective May 8, 2026

INFORMATIONAL - Executive Detail Announcement - Himesh Patel

INFORMATIONAL - Commercial System Releases – May 10, 2026

INFORMATIONAL - Executive Retirement - Robert H. Raines Jr

April 2026 Nixie Volume

This spreadsheet contains the UAA statistics for April 2026.

ZIP Codes by Area and District codes

The Excel spreadsheet lists ZIP Codes with the associated Area and District Codes.  

INFORMATIONAL - Officer Appointments - Chief Solutions & Strategy Officer and Vice President of Network Solutions & Performance Excellence

DELIVERY - Falkland Post Office (27827) - Temporarily Closed

INFORMATIONAL: Mail Spoken Here - April Issue

PCC Insider April 2026 Edition