Contact Lists
11/26/2025
DPV® Licensees Data File Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)
Contact Lists
11/26/2025
DPV® Licensees Cycle O: Certified Products Guide - (Expires July 31, 2028)
Contact Lists
11/26/2025
CASS™ Software Manufacturers Data File Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)
Contact Lists
11/26/2025
CASS™ Software Manufacturers Cycle O - (Expires July 31, 2028)
Contact Lists
11/26/2025
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.

Presentations
11/25/2025
2026 Mailing Promotions Webinar Slides
Presentations
11/25/2025
2026 Mailing Promotions Webinar
User Guides
11/25/2025
Quick Reference Guide: Bundle Preparation and Handling Recommendations

A guide to ensuring your bundles stay secure during transit.

Announcements
11/24/2025
DELIVERY: Central Area - Illinois 1 - Wilmette Post Office (60091) - Suspended
Announcements
11/24/2025
DELIVERY: Atlantic Area - Pennsylvania 1 District - Amity Post Office (15311) - Office Temporarily Suspended