INFORMATIONAL - National Postal Forum 2026 Keynote Speaker – Jeremy Gutsche

USPS Ship Monthly Averages Tech Sheet

INFORMATIONAL - USPS Enhanced Addresses API – Coming July 2026

INFORMATIONAL - Informed Delivery Campaign Reporting Update April 2026

Addressing API License Agreement

INFORMATIONAL - 2026 National Postal Forum Leadership Insight Sessions

INFORMATIONAL - Package Tracking API Provisioning Cancelled

Mail.dat Technical Specifications R64.0.0.0

Provisioning Enterprise Payment (EPS) and USPS Ship (formerly Package Platform (PPC)) Data through Informed Visibility® (IV®)

This guide provides instructions for receiving Enterprise Payment System (EPS) and USPS Ship (formerly Package Platform Concept (PPC)) data through the IV Mail Tracking & Reporting (IV-MTR) application. Instructions include how to get access, create and manage a data feed, manage the address book, and manage data delegation.

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®.

April 12 2026 Time Limited Price Change (TLPC) 2026 Release Notes

INFORMATIONAL - July 2026 Market Dominant Price Change Filing Webinar - Friday, April 17, 2026

DELIVERY - Southern Area - AR-OK District - Wilton Post Office (71865) - Permanently Suspended

INFORMATIONAL - Time Limited Price Change 2026 Commercial System Releases – April 12, 2026

INFORMATIONAL - U.S. Postal Service Recommends New Prices for July

PTR2 Release Notes_DD_04_07_26

INFORMATIONAL - Parcel Dimension Compliance New Rules

April 12 2026 Time Limited Price Change (TLPC) 2026 Release Overview

DELIVERY - International Service Resumption to United Arab Emirates - Effective April 10, 2026

INFORMATIONAL - USPS APIs Critical Maintenance April 8, 2026

DELIVERY: MILITARY POST OFFCE (MPO) 09309 - RESUMED MAILING SERVICE

INFORMATIONAL - Package Tracking API Provisioning - Reminder

IMpb/IMmb Electronic File Transmission Requirements

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).

Informed Delivery® Post-Campaign (IDPC) Data through IV-MTR® Data Dictionary

This document describes the Informed Delivery Post-Campaign (IDPC) data fields available through the IV-MTR application.