Announcements
03/10/2026
INFORMATIONAL - Commercial Systems Release March 12, 2026
Tech Guides
03/10/2026
USPS Ship Misshipped Tech Sheet
Announcements
03/09/2026
DELIVERY - DPO Suspensions March 9, 2026
FAQs
03/09/2026
2026 Promotions FAQ
Data Files
03/09/2026
Cumulative Listing of ZIP Codes Covered by the LACS Database

This document provides a cumulative listing of ZIP Codes covered by the LACS database for LACSLink®.

Announcements
03/06/2026
INFORMATIONAL - Commercial System Releases – March 8, 2026
Release Notes
03/06/2026
PTR2 Release Notes_DD_03_07_26
Announcements
03/06/2026
INFORMATIONAL- 2026 National Postal Forum - Workshop Schedule Is Available Online
FAQs
03/06/2026
USPS PTR2 API Known Issues
Announcements
03/05/2026
INFORMATIONAL - End of USPS Web Tools Tracking 3.5.26