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.

Undeliverable-as-Addressed (UAA) Mail Roll-Up 1998-2024

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

DELIVERY: WestPac Area: CA-1 District - Olema Post Office (94950) - Temporarily Closed

INFORMATIONAL: Organization Realignment - Strategic Accounts & Service Initiatives

INFORMATIONAL: Executive Retirement - Tom Blum, Vice President of Labor Relations

USPS APIs Release Notes

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

Z4 Info File

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

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.

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.