Announcements
04/14/2026
National Postal Forum 2026 Keynote Speaker – Jeremy Gutsche
Announcements
04/14/2026
INFORMATIONAL -PostalOne! System - INCIDENT 10567141 Error with Mail Entry Additional Postage Assessment Report
Announcements
04/14/2026
INFORMATIONAL - National Postal Forum 2026 Keynote Speaker – Jeremy Gutsche
Tech Guides
04/14/2026
USPS Ship Monthly Averages Tech Sheet
Announcements
04/13/2026
2026 National Postal Forum Leadership Insight Sessions
Announcements
04/13/2026
INFORMATIONAL - USPS Enhanced Addresses API – Coming July 2026
Announcements
04/13/2026
INFORMATIONAL - Informed Delivery Campaign Reporting Update April 2026
Applications/ Forms
04/13/2026
Addressing API License Agreement
Announcements
04/13/2026
INFORMATIONAL - 2026 National Postal Forum Leadership Insight Sessions
Announcements
04/13/2026
INFORMATIONAL - Package Tracking API Provisioning Cancelled
Release Notes
04/12/2026
April 12 2026 Time Limited Price Change (TLPC) 2026 Release Notes
Announcements
04/10/2026
INFORMATIONAL - July 2026 Market Dominant Price Change Filing Webinar - Friday, April 17, 2026
Announcements
04/10/2026
DELIVERY - Southern Area - AR-OK District - Wilton Post Office (71865) - Permanently Suspended
Announcements
04/10/2026
INFORMATIONAL - Time Limited Price Change 2026 Commercial System Releases – April 12, 2026
Announcements
04/09/2026
INFORMATIONAL - U.S. Postal Service Recommends New Prices for July
Release Notes
04/09/2026
PTR2 Release Notes_DD_04_07_26
Announcements
04/08/2026
Leveraging Informed Delivery for Your PCC Events
Announcements
04/08/2026
INFORMATIONAL - Parcel Dimension Compliance New Rules
Release Notes
04/08/2026
April 12 2026 Time Limited Price Change (TLPC) 2026 Release Overview
Announcements
04/08/2026
DELIVERY - International Service Resumption to United Arab Emirates - Effective April 10, 2026
Announcements
04/08/2026
INFORMATIONAL - USPS APIs Critical Maintenance April 8, 2026
Announcements
04/07/2026
DELIVERY: MILITARY POST OFFCE (MPO) 09309 - RESUMED MAILING SERVICE
Announcements
04/07/2026
INFORMATIONAL - Package Tracking API Provisioning - Reminder
Quick Service Guides
04/07/2026
Enterprise Payment System (EPS) Deposit Instructions

These instructions include general technical information and instructions for sending electronic funds into your EPS account. The information here is designed for trust customers (and debit customers who need to initiate a fund transfer to cover a debit return problem).

Announcements
04/06/2026
INFORMATIONAL - Executive Retirement - Sharon Owens
Data Files
04/06/2026
PTR Domestic Scan Events and Descriptions
Announcements
04/03/2026
DELIVERY - WestPac Area - ID-MT-OR District - Office Temporarily Closed - North Bend Post Office
Announcements
04/03/2026
INFORMATIONAL - USPS APIs System Deployment April 18, 2026
Announcements
04/03/2026
INFORMATIONAL - USPS APIs System Deployment April 12, 2026
Release Notes
04/03/2026
PTR2 Release Notes_DD_04_02_26
Release Notes
04/03/2026
PTR2 Release Notes_DD_04_04_26
Announcements
04/02/2026
April 2026 PCC Events Calendar
Announcements
04/02/2026
DELIVERY - Southern Area - Texas 3 District - Los Jardines Post Office (78237) - Temporarily Suspended
Announcements
04/02/2026
INFORMATIONAL -Upcoming USPS.com Maintenance CANCELLED
Announcements
04/02/2026
DELIVERY Resumption of Mail Service to Lebanon- Effective April 3, 2026
Publications
04/02/2026
PCC Events (April 2026)
Data Files
04/02/2026
Undeliverable-as-Addressed (UAA) Statistics by Mailing Industry Quarterly Report (Q2 FY26)

ACS Nixie stats by industry for FY26 Q2.

Announcements
04/01/2026
INFORMATIONAL - USPS Modernization Through Package Equipment Upgrades in April 2026
Announcements
04/01/2026
INFORMATIONAL - Atlantic Area AIM Meeting June 2, 2026
Data Files
04/01/2026
March 2026 Nixie Volume

This spreadsheet contains the UAA statistics for March 2026.

Announcements
04/01/2026
INFORMATIONAL - Federal Register - Manifest Mailing System Retired April 1, 2026
Presentations
03/31/2026
Pop-Up Mini Café: Brewed for Business: The Shipping Mini Café
Announcements
03/31/2026
DELIVERY - Southern Area - Puerto Rico District - Moca Post Office (00676) - Suspended
Announcements
03/31/2026
INFORMATIONAL - USPS Package Tracking Access Control Implementation (Effective Wednesday, April 1, 2026)
Announcements
03/31/2026
DELIVERY - Atlantic Area Easton Post Office (18042) - Closed Until Further Notice
Announcements
03/31/2026
INFORMATIONAL: Mail Spoken Here March 2026 Issue
Announcements
03/30/2026
INFORMATIONAL - USPS APIs System Maintenance April 15 Release
User Guides
03/30/2026
USPS APIs Terms and Conditions

ACKNOWLEDGEMENT AND ACCEPTANCE. Read this carefully before registering to use the USPS API services. By utilizing the APIs, you hereby ACCEPT ALL of the terms and conditions of this Agreement. 

Release Notes
03/29/2026
March 29 2026 PostalOne! Release Notes
Release Notes
03/27/2026
PTR2 Release Notes_DD_03_27_26