Fact Sheets
07/31/2026
Commonly Asked Mailpiece Design Analyst (MDA) Customer Questions

Commonly asked questions and answers from MDA customers.

Fact Sheets
07/30/2026
Addresses API - Tech Sheet
Fact Sheets
07/28/2026
IMpb/IMmb Electronic File Transmission Requirements
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.