Publications
02/28/2025
PCC Insider February 2025 Edition
Announcements
02/27/2025
PROCESSING & DISTRIBUTION - Postal Service Addressing Service Delays in Louisville, Kentucky
Announcements
02/27/2025
DELIVERY - INTERNATIONAL SERVICE SUSPENSION NOTICE (TURKMENISTAN)
Announcements
02/27/2025
DELIVERY: WestPac Area: ID-MT-OR District - Offices Temporarily Closed
Announcements
02/27/2025
2025 National Postal Forum – Workshop Matrix Is Available Online
Announcements
02/27/2025
PROCESSING: Postal Service Prepares for Mardi Gras Festivities
Tech Guides
02/27/2025
Labeling Lists Technical Guide

The Labeling Lists data product assists mailers with presorting mail. It provides active, originating 3- and 5-digit ZIP Code™ data along with their destination locations [including city/state/ZIP Code] for labeling purposes. The product contains complete data files of each list found online via Postal Explorer® at https://pe.usps.com. Updates to the Labeling Lists are also published in the Postal Bulletin.

Announcements
02/26/2025
INFORMATIONAL: U.S. Postal Service Announces Refined Service Standards and Cost Reductions
Announcements
02/26/2025
INFORMATIONAL: 2025 National Postal Forum - Workshop Matrix Is Available Online
Publications
02/26/2025
Labeling List Changes Effective April 1, 2025

Effective April 1, 2025, the Postal Service™ will revise Labeling List(s) L003, L011, L012, L015, L051, and L801 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the April 1, 2025, effective date through May 31, 2025, expiration date. The changes will be published in the Postal Bulletin, Issue #22672.