Tech Guides
09/03/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Mail.XML Guide

This guide provides information about using MailXML™ to receive mail tracking data through the IV-MTR application. Through Mail.XML, mailers can receive visibility information for letter and flat containers and handling units (trays, tubs, and sacks).

Announcements
09/02/2026
INFORMATIONAL - Western Region - Beaumont, TX – Tropical Storm Edouard Impacts
Announcements
09/01/2026
INFORMATIONAL - UPDATE - Elevate Your Marketing Strategy with USPS 2027 Mailing Promotions Kickoff Webinar
Data Files
09/01/2026
August 2026 Nixie Volume

This spreadsheet contains the UAA statistics for August 2026.

Contact Lists
09/01/2026
MPE (Mail Processing Equipment) Service Provider Licensees

Marketing contact information for certified Mail Processing Equipment (MPE) licensees 

  • 08/31/2026

    PCC Insider August 2026 Edition

    • Announcements
    08/31/2026
    INFORMATIONAL: Mail Spoken Here - August 2026
    Announcements
    08/29/2026
    INFORMATIONAL - Drop Shipment Appointments at San Antonio Annex 780MP
    Release Notes
    08/28/2026
    October 2026 - Timelimited Price Change Release Overview
    Presentations
    08/27/2026
    PCCAC Certification Webinar: Postal Shipping Products Deep Dive with Catherine Knox
    Announcements
    08/27/2026
    DELIVERY - Big Sur Post Office (03920) - Temporarily Closed
    Release Notes
    08/27/2026
    PTR2 Release Notes_DD_08_27_26
    Announcements
    08/26/2026
    DELIVERY: WestPac Area – NV-UT District - Sierra Post Office (89506) – Resume Operations
    Release Notes
    08/26/2026
    August 27, 2026 COP Release Notes
    Announcements
    08/25/2026
    News You Need to Know from MTAC
    Announcements
    08/25/2026
    DELIVERY: WestPac Area – CO-WY District - Hasty Post Office (81044) – Resume Operations
    Announcements
    08/25/2026
    INFORMATIONAL: USPS Scan Event Extract Modernization Updates
    Presentations
    08/25/2026
    PCCAC: News You Need to Know from MTAC - July 2026
    Announcements
    08/25/2026
    PROCESSING AND DISTRIBUTION - Update - Southeast Region – Tennessee – Severe Weather Impacts
    Announcements
    08/25/2026
    INFORMATIONAL - Commercial System Releases – August 27, 2026 – September 4, 2026
    User Guides
    08/25/2026
    Intelligent Mail Small Business (IMsb) Tool User Guide
    Contact Lists
    08/25/2026
    USPS® Approved Manufacturers of Mailing Containers for Adult Birds

    A list of contact information for adult bird container manufacturers that have been certified by USPS.

    Announcements
    08/24/2026
    DELIVERY - Sierra Post Office (89506) - Temporarily Closed
    Announcements
    08/24/2026
    INFORMATIONAL - Elevate Your Marketing Strategy with USPS 2027 Mailing Promotions Kickoff Webinar
    Announcements
    08/24/2026
    INFORMATIONAL - National Change of Address (NCOA+) APIs through October 19, 2026