Data Files
12/20/2024
Volume Tables: PARS 2024

This spreadsheet contains 3 volume tables that provide summary data by class of mail, shape, presort category, and disposition of UAA Mail.

Data Files
12/20/2024
Undeliverable-as-Addressed (UAA) Mail Roll-Up 1998-2024

This spreadsheet provides a breakdown of Total UAA mail by mail class from FY1998 thru FY2024.

Contact Lists
12/20/2024
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
12/19/2024
DELIVERY: WestPac Area: CA-1 District - Olema Post Office (94950) - Temporarily Closed
Announcements
12/19/2024
INFORMATIONAL: Organization Realignment - Strategic Accounts & Service Initiatives
Announcements
12/19/2024
INFORMATIONAL: Executive Retirement - Tom Blum, Vice President of Labor Relations
Release Notes
12/19/2024
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.

Contact Lists
12/19/2024
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)
Contact Lists
12/19/2024
RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)

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

Contact Lists
12/19/2024
CASS™ Certified Products Guide: M L O C R Mailers/Users Data File Cycle O - (Expires July 31, 2028)