Contact Lists
12/19/2024
DSF2® Licensees Cycle O: Certified Products Guide - (Expires July 31, 2028)
Contact Lists
12/19/2024
DPV® Licensees Data File Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)
Contact Lists
12/19/2024
DPV® Licensees Cycle O: Certified Products Guide - (Expires July 31, 2028)
Contact Lists
12/19/2024
CASS™ Software Manufacturers Data File Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)
Contact Lists
12/19/2024
CASS™ Software Manufacturers Cycle O - (Expires July 31, 2028)
Contact Lists
12/19/2024
CASS™/MASS™ Certified Products Guide - All Sections Data Files Cycle O - (Expires July 31, 2028)

This document contains the certified vendors list for CASS™ and MASS™ products for Cycle O.

Data Files
12/19/2024
Z4 Info File

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

Publications
12/19/2024
Publication 401: Guide to the Manifest Mailing System

This publication provides information on the Manifest Mailing System, which automates the documentation of postage and fees for all pieces in a mailing paid via permit imprint indicia.

Data Files
12/19/2024
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
12/18/2024
Register Now for NPF 2025 Discount Opportunities