Data Files
07/11/2025
Updated List: Service Type Codes for Intelligent Mail® Package Barcode (IMpb)

This document provides the updated service type codes for  Intelligent Mail® Package Barcodes.

Tech Guides
07/10/2025
Release Notes
07/10/2025
USPS APIs Release Notes

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

Applications/ Forms
07/08/2025
Request Letter Template to Change EPS BSA in the BCG

Form to change the Enterprise Payment System (EPS) business services administrator (BSA) in the Enterprise Payment System (EPS).