User Guides
04/01/2025
04/01/2025
Service Standards File Layouts/Release Notes
The Postal Service is making service standard changes to support Delivering for America network changes.
User Guides
04/01/2025
04/01/2025
Service Standards File Layouts/Release Notes
The Postal Service is making service standard changes to support Delivering for America network changes.
User Guides
10/06/2023
10/06/2023
USPS Service Standards Getting Started Guide
The Postal Service has developed Service Standards data files to help customers determine the number of days in transit.