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

Commonly asked questions and answers from MDA customers.

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.

Fact Sheets
07/14/2026
Catalog Incentive Fact Sheet

Catalogs offer a unique marketing perspective to products and services and provide important value to the mailbox. As part of the July 14, 2024 price change, USPS published a new Catalog definition in the Domestic Mail Manual. Simultaneously, the Postal Service is offering a Catalog Incentive price discount of $0.001 per mailpiece to Catalog mailers who comply with the new Catalog definition and meet all other eligibility requirements for the Catalog Incentive.