Publications
01/01/2026
Combined Service Standard Directory-GAH
Publications
01/01/2026
Combined Service Standard Directory-FCM
Publications
01/01/2026
3D Base Service Standard Directory
Announcements
12/31/2025
INFORMATIONAL - Mail Spoken Here - December Edition
Announcements
12/31/2025
Announcing the Winners of the #ThankfulPCC PCC Voice Challenge!
Publications
12/31/2025
PCC Insider December 2025 Edition
Announcements
12/29/2025
DELIVERY - WestPac Area: California 6 District - Wrightwood Post Office and Lytle Post - Resume Operations
  • 12/29/2025

    USPS APIs Terms and Conditions

    ACKNOWLEDGEMENT AND ACCEPTANCE. Read this carefully before registering to use the USPS API services. By utilizing the APIs, you hereby ACCEPT ALL of the terms and conditions of this Agreement. 

    • Announcements
    12/29/2025
    INFORMATIONAL: USPS APIs System Deployment - January 10, 2026
    Data Files
    12/29/2025
    Labeling List Changes Effective February 1, 2026

    Effective February 1, 2026, the Postal Service™ will revise Labeling List(s) L002, L005, L012, L016, L051, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the February 1, 2026, effective date through March 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22694.