Release Notes
11/14/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Release Notes

These release notes summarize new features and enhancements implemented in deployments to the IV-MTR application.

Release Notes
11/10/2026
PFSC Application 3.0 Release Notes 11-10-2026

PFSC Release Notes for the enhancement release on 11/10/2026.

User Guides
11/10/2026
Premium Forwarding Service Commercial External User Guide

User Guide for the Premium Forwarding Service Commercial application. 

Announcements
11/09/2026
INFORMATIONAL - REMINDER - FY2027 Peak Season Network Update Webinars Begin
Announcements
11/09/2026
News You Need to Know from MTAC- October 2026
Data Files
11/09/2026
Informed Visibility Mail Tracking & Reporting Machine Count

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

Data Files
11/09/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
11/09/2026
City/State ZIP Code Weekly Compare
Data Files
11/09/2026
3 Digit ZIP/AISU Office List (AISUREPT.TXT)
Data Files
11/09/2026
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 LACSLink®.