Tech Guides
12/09/2022
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.

Quick Service Guides
12/06/2022
LACSLink® Developer Certification Procedures

This document contains developer procedures for LACSLink®.

Presentations
12/02/2022