Publications
04/01/2025
Destination Entry Service Standard Directory
User Guides
04/01/2025
Service Standards File Layouts/Release Notes

The Postal Service is making service standard changes to support Delivering for America network changes. We continue to provide service standard data files for customer use to determine the number of days in transit. This tech sheet will provide file layouts to help customers understand ongoing and upcoming changes associated with the proposed changes. Along with file layout changes, we are now incorporating Presort First-Class Service Standards.

Data Files
04/01/2025
ZIP Codes by Area and District codes

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

Announcements
03/31/2025
2025 National Postal Forum – Registration Closes This Week
Announcements
03/31/2025
INFORMATIONAL: Mailing & Shipping Solutions Center (MSSC) Announces eVS Helpdesk Transition
User Guides
03/29/2025
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) User Guide

The User Guide describes the prerequisites for receiving mail tracking data through IV-MTR, the data provisioning options available, and how to use the application for tracking commercial domestic-bound barcoded letters and flats.

Announcements
03/28/2025
INFORMATIONAL: Scheduled Commercial Systems Activities - April 10, 2025
Presentations
03/28/2025
WestPac Area AIM 3-25-2025 Recording

Access Passcode: Fdx6X!95

Presentations
03/28/2025
WestPac Area AIM 3-25-2025
Presentations
03/28/2025
USPS Service Standards Enhancement Webinar Presentation