Announcements
01/09/2025
Post Office/ZIP Code Entries for Postal Bulletin 1/23/2025

This spreadsheet provides details on the Post Office/ZIP Code entry changes for Postal Bulletin issue 1/23/2025.

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01/09/2025
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)
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01/09/2025
RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)

This document outlines the CASS/MASS certified vendors list for RDI™ Cycle O.

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01/09/2025
CASS™ Certified Products Guide: M L O C R Mailers/Users Data File Cycle O - (Expires July 31, 2028)
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01/09/2025
CASS™ Certified Products Guide: M L O C R Mailers/Users Cycle O - (Expires July 31, 2028)
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01/09/2025
CASS™ Certified Products Guide: M L O C R Service Bureaus Data File Cycle O - (Expires July 31, 2028)
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01/09/2025
CASS™ Certified Products Guide: M L O C R Service Bureaus Cycle O - (Expires July 31, 2028)
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01/09/2025
CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Data File Cycle O - (Expires July 31, 2028)
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01/09/2025
CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Cycle O - (Expires July 31, 2028)
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01/09/2025
CASS™ Certified Products Guide: Z4CHANGE Data File Cycle O - (Expires July 31, 2028)