Release Notes
04/04/2025
April 13, 2025 Release Notes
Presentations
04/03/2025
The New Launch Procedure Presentation

New Launch Procedure Presentation

Presentations
04/03/2025
The New Launch Procedure
Data Files
04/03/2025
Z4 Info File

A downloadable ZIP file containing information related to the Z4 Info File

Data Files
04/03/2025
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
04/02/2025
Promotions Alert: 4/2/2025
Announcements
04/02/2025
Promotions Alert: 4/2/2025
Data Files
04/02/2025
Undeliverable-as-Addressed (UAA) Statistics by Mailing Industry Quarterly Report (Q2 FY25)

ACS Nixie stats by industry for FY25 Q2.

Contact Lists
04/02/2025
Mail Service Provider (MSP) - Full-Service Certified Mailers

A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet

 

Announcements
04/01/2025
INFORMATIONAL: USPS Aligns Priority Mail Express Product with Delivering for America Plan Initiatives