Data Files
07/16/2026
Early Warning System (EWS002C0.ZIP)

This file is the EWS production file and is updated weekly. This file contains the Early Warning System data file for the CASS™ and MASS™ certification process.

 

Announcements
07/16/2026
Modifications to DSF2® License and Supporting Documents

This document lists modifications to the DSF2® license agreement and supporting documents.

Applications/ Forms
07/16/2026
DSF2® License Agreement

This document provides a license agreement for DSF2®.

Announcements
07/16/2026
Modifications to DPV® License and Supporting Documents

This document lists modifications to the DPV® license agreement and supporting documents.

Announcements
07/15/2026
DELIVERY: WestPac Area: CO-WY District - Beulah Post Office (81023) - Resume Operations
Announcements
07/15/2026
INFORMATIONAL: WestPac Area AIM Meeting - August 6, 2026
Announcements
07/15/2026
DELIVERY - INTERNATIONAL SERVICE SUSPENSION NOTICE – effective July 17, 2026
Announcements
07/15/2026
INFORMATIONAL - Security Enhancements to USPS.com July 30, 2026
Announcements
07/15/2026
INFORMATIONAL - UPDATE - PostalOne! System (PO!) – Delivery Sort Container Discount Not Applied
Fact Sheets
07/15/2026
Addresses API - Tech Sheet