Announcements
06/12/2026
DELIVERY - South Colton Post Office (13687) - Suspended Temporarily
Announcements
06/12/2026
INFORMATIONAL - USPS Occupancy Trends Product
Announcements
06/12/2026
INFORMATIONAL - USPS Population Mobility Trends Product
Release Notes
06/12/2026
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. 

Announcements
06/10/2026
INFORMATIONAL - July Price Change 2026 - Commercial System Releases June 28, 2026
Announcements
06/10/2026
INFORMATIONAL - Mailer ID (MID) Validation for Payments API June 22, 2026
Announcements
06/10/2026
DELIVERY - International Service Resumption Notice effective June 12, 2026
Announcements
06/09/2026
DELIVERY - Lone Rock Post Office (50559) - Suspended Temporarily
Presentations
06/09/2026
Atlantic AIM Presentation - June 3, 2026
Contact Lists
06/09/2026
Atlantic AIM Leadership 2026
Announcements
06/08/2026
INFORMATIONAL - New Mail.dat client for July 2026 Price Change June 28, 2026
Announcements
06/08/2026
INFORMATIONAL - USPS APIs System Release Notification June 10, 2026
Announcements
06/06/2026
INFORMATIONAL: USPS APIs System Deployment [CR# TBD] - Saturday, June 27, 2026
Announcements
06/06/2026
INFORMATIONAL: USPS APIs System Deployment - Sunday, June 21, 2026
Announcements
06/06/2026
INFORMATIONAL: USPS APIs System Deployment - Sunday, June 7, 2026
Announcements
06/05/2026
PCC Week 2026 Topic Ideas
Publications
06/05/2026
PCCAC Marketing and Communications Newsletter May 2026 Edition
Announcements
06/05/2026
INFORMATIONAL - Commercial System Releases (June 11 – June 19)
Announcements
06/05/2026
DELIVERY - Clarkson Post Office (14430) - Suspended Temporarily
Announcements
06/05/2026
INFORMATIONAL - Reminder - Central Area AIM In-Person Meeting 2026 Invitation - JUNE 30th 2026
Release Notes
06/05/2026
June 11 2026 USPS Ship R27.0.3.0 Release Notes
Announcements
06/04/2026
INFORMATIONAL - Commercial System Release - June 4, 2026
Announcements
06/04/2026
INFORMATIONAL - Major USPS Pricing Shifts July 2026 - What Mailers Need to Know
Release Notes
06/04/2026
June 4 2026 USPS Ship R27.0.2.0 Release Notes
Announcements
06/03/2026
INFORMATIONAL - USPS Modernization Through Package Equipment Upgrades in June 2026
Announcements
06/03/2026
DELIVERY - Corte Madera Post Office - Temporarily Closed
Publications
06/03/2026
PCC Events (June 2026)
Announcements
06/02/2026
INFORMATIONAL - RESOLVED - Enterprise Payment System – Incident #10716992 Issues with Postage Statement Finalization, ACH Withdrawal Details Missing from Data Feeds
Applications/ Forms
06/02/2026
Occupancy Trends License Agreement
Announcements
06/01/2026
INFORMATIONAL - 2nd Reminder - USPS Enhanced Addresses API – Coming July 2026
Announcements
06/01/2026
INFORMATIONAL - Mail Spoken Here - May Issue
Data Files
06/01/2026
May 2026 Nixie Volume

This spreadsheet contains the UAA statistics for May 2026.

Publications
05/29/2026
PCC Insider May 2026 Special Edition
Announcements
05/29/2026
INFORMATIONAL - Commercial System Releases (June 6 – June 12)
Announcements
05/29/2026
Processing and Distribution - Memphis TN Regional Processing and Distribution Center (RPDC) Expands Operations May 30, 2026
Announcements
05/29/2026
Processing and Distribution - UPDATE - Western Region – Tucson, AZ Processing and Distribution Center (P&DC) - Power Restored
Applications/ Forms
05/29/2026
Population Mobility Trends Order Form
Announcements
05/28/2026
DELIVERY - Diplomatic Post Office (DPO) May 28, 2026
Tech Guides
05/28/2026
USPS Ship Zone Tech Sheet
Release Notes
05/28/2026
PTR2 Release Notes_DD_05_30_26
Applications/ Forms
05/28/2026
Mailers Technical Advisory Committee (MTAC): Association Membership Form
Data Files
05/28/2026
Population Mobility Trends 12-Month Historical (CSV) Sample File
Applications/ Forms
05/28/2026
Occupancy Trends Order Form
Data Files
05/28/2026
Occupancy Trends Congressional District Vacant File (TXT) Sample File
Data Files
05/28/2026
Occupancy Trends County Vacant File (TXT) Sample File
Data Files
05/28/2026
Occupancy Trends Route Vacant File (TXT) Sample File
Data Files
05/28/2026
Occupancy Trends ZIP Code Vacant File (TXT) Sample File
Tech Guides
05/28/2026
Occupancy Trends Technical Guide
Applications/ Forms
05/28/2026
USPS Population Mobility Trends License Agreement (Sample Only)
Technical Specifications
05/28/2026
Population Mobility Trends Technical Guide