Announcements
07/17/2026
LACSLink® End User License Agreement

This document contains the End User License Agreement for LACSLink®.

Fact Sheets
07/17/2026
Licensing Fees

This document contains information about licensing fees for USPS® Licensed Products.

Fact Sheets
07/17/2026
Address Matching System API (AMS API) Licensing Fees

This document outlines the AMS API prorated fee structure. License fees are prorated for the initial license year with a license year beginning October 1 and ending September 30.

Announcements
07/16/2026
DELIVERY - Trail Post Office - Temporarily Closed
Announcements
07/16/2026
DELIVERY - Weston Post Office - Temporarily Closed
Announcements
07/16/2026
INFORMATIONAL - Expansion of Daily Webinar Series through September 4, 2026
Release Notes
07/16/2026
July 17, 2026 Customer Onboarding Portal R2.5.4.0
Announcements
07/16/2026
DELIVERY - Eureka Post Office – Resume Operations
Release Notes
07/16/2026
USPS APIs Release Notes

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

Contact Lists
07/16/2026
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)