INFORMATIONAL - Federal Register - Manifest Mailing System Retired April 1, 2026

Informed Visibility Mail Tracking & Reporting Machine Count

List of US Postal Service machines by site, including a description of each machine.

ZIP Codes by Area and District codes

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

Pop-Up Mini Café: Brewed for Business: The Shipping Mini Café

Pop-Up Mini Café: Brewed for Business: The Shipping Mini Café

Passcode: 5T8K2$*L

DELIVERY - Southern Area - Puerto Rico District - Moca Post Office (00676) - Suspended

INFORMATIONAL - USPS Package Tracking Access Control Implementation (Effective Wednesday, April 1, 2026)

DELIVERY - Atlantic Area Easton Post Office (18042) - Closed Until Further Notice

INFORMATIONAL: Mail Spoken Here March 2026 Issue

INFORMATIONAL - USPS APIs System Maintenance April 15 Release

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. 

March 29 2026 PostalOne! Release Notes

PTR2 Release Notes_DD_03_27_26

PTR2 Release Notes_DD_03_29_26

PCC Voice Challenge #PCCRepost

INFORMATIONAL - FAST Appointment Update (03.29.2026)

DELIVERY - Diplomatic Post Office (DPO) 09892 - Resume Mailing Services

Beyond the Mail

Turn USPS’s unmatched doorstep reach into smarter decisions with Beyond the Mail—powered by USPS Post Office and Collection Box Data, USPS Occupancy Trends, and USPS Population Mobility Trends for sharper planning across real estate, retail, logistics, and more.

INFORMATIONAL - U.S. Postal Service Announces Transportation-Related, Time-Limited Price Change

March 25 2026 Release Notes

Tracking Access Control Tech Sheet

Package Tracking allows seamless integration of real-time tracking information into business systems, enabling monitoring of USPS package status from shipment to delivery.  USPS is upgrading tracking data access to enhance security and combat fraud by modernizing and securing customer access.

Enterprise Payment System (EPS) FAQs

The Enterprise Payment System or EPS allows customers to pay for products and services through an Enterprise Payment Account (EPA) funded as an Automated Clearing House (ACH) Debit or Trust Account. The EPS payment account management provides enhanced security features, centralized balance and account management, and a self-service customer experience.

Customer Guide: Manage MGI Service Request Access and Ownership

Mail Growth Incentives FAQs

INFORMATIONAL - USPS Ship (PPC) – Updated Package Transactions Details Data Feed

May 3 2026 Release Notes

INFORMATIONAL - Upcoming Cust Reg Maintenance - April 18, 2026 (03.20.2026)

March 29 2026 FAST Release Notes

Professional Development Series - Leadership: A Call to Action with Mark Fallon

https://usps.zoomgov.com/rec/share/W1LoGLcp2VsYqSQxzAC00vsj9aT_wKh0Z-aGODakEAwA8gRB7QvWTlKfssdTrBkX.-Mnc0QvRx8KrGNog

Passcode: Q?l99E08

PTR2 Release Notes_DD_03_21_26

DELIVERY - International Resumption of Mail Service - Effective March 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. 

INFORMATIONAL: 2026 National Postal Forum - New NPF Vignettes Track

INFORMATIONAL - Kansas City Processing and Distribution Center New Package Sorting Equipment Installation

DELIVERY - International Service Suspension Notice March 20, 2026 - Lebanon

USPS MCAT - TechSheet

Coming soon..

Mail.xml Technical Specifications R64.0.0.0

Enterprise Payment System (EPS) User Guide

PCC National Monthly Touchpoint (March)

PCC National Monthly Touchpoint (March) Zoom Recording

Passcode: W?PwtL0?

INFORMATIONAL - Central Area AIM Meeting 2026 SAVE-THE-DATE - JUNE 30th 2026

INFORMATIONAL - Major Storm Impacting Shipping Services in Eastern and Central Regions

PTR2 Release Notes_DD_03_12_26

Adjustments to Mail Growth Incentives Registration

MGI Customers can submit multiple requests to the Program Office to initiate discussions for adjusting existing Incentives Registration service requests that are in review.

Mail Growth Incentives New Registration User Guide

On September 27, 2023, the Postal Regulatory Commission (PRC) approved the request by the United States Postal Service (UPSP) to update the Mail Classification Schedule (MCS) by establishing two separate Mail Growth Incentives (MGI): the First-Class Mail Growth Incentive and the Marketing Mail Growth Incentive. These incentives will run simultaneously from January 1 through December 31.

INFORMATIONAL - New Portal to Premium Forwarding Service Commercial (PFSC)

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 - Commercial System Releases – March 22, 2026

INFORMATIONAL - USPS APIs System Maintenance March 25, 2026