INFORMATIONAL: USPS APIs System Release Notification

PCC Events (August 2026)

INFORMATIONAL - Pacific Northwest Region – Wildfires

INFORMATIONAL - Addresses API 3.3.1 Access Controls Successfully Implemented

DELIVERY - Rosewood Post Office (99208) - Temporarily Closed

Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Development Tracker

This document provides a list of active IV-MTR work to be as well as items completed in FY25.

*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.

Guide to USPS Ship

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.

Guide to eInduction

DELIVERY - Mead Post Office (99021) - Temporarily Closed

DELIVERY - Nine Mile Falls Post Office (99026) - Temporarily Closed

PCC Event Form Template

July 2026 Nixie Volume

This spreadsheet contains the UAA statistics for July 2026.

INFORMATIONAL - Commercial System Releases – August 6 - August 14, 2026

August 9, 2026 - Electronic Shortpaid Assessment System (eSAS) Release 47.2.0.0

August 9, 2026 - Program Registration Release 31.1.0.0

Informed Visibility Mail Tracking & Reporting Machine Count

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

***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)

Automated Zone Indicator (AZI) Table

The AZI table lists each five-digit ZIP Code™ and is an indicator of the type of processing that typically takes place on letter mail destined for each ZIP Code. Each number in the file is a ZIP Code appended with a numeric zone indicator. The five numeric indicators are as follows:

1. Two Pass Zones: Automated two-step sector/segment at mail processing facilities
2. 876 Carrier Route Sort Zones: Automated incoming secondary carrier route sorting at plants
3. Carrier Route Barcode Sorter (CSBCS) Zones: Automated walk sequence sorting on CSBCS machines at delivery units
4. Delivery Barcode Sorter (DBCS) Zones: Automated walk sequence sorting on DBCS machines at plants [i.e., sectional center facilities (SCFs)] or at delivery units
5. Manual/Mechanized Zones: No automated sorting; no tracking code scans should be generated from facilities matched to these ZIP Codes

City/State ZIP Code Weekly Compare

3 Digit ZIP/AISU Office List (AISUREPT.TXT)

AIS Congressional District File (CONG_DIST.TXT)

AIS County Name Table Layout (AISCNTY.TXT)

AMS County Name Table (COUNTY_NAME_TABLE.TXT)

AMS Address Report: AISU Mailing List (ADDRREPT.TXT)