Addressing Fact Sheet for USPS Marketing Mail Flats

This document is for business mailers who are sending flat-size USPS Marketing Mail (such as large envelopes, catalogs, and circulars). To use the USPS Marketing Mail prices, you must send at least 200 pieces or 50 pounds of mail at a time, prepared and sorted according to Postal Service guidelines.

Addressing Fact Sheet for Periodicals Flats

An overview of new address requirements for mailers who are sending flat-size Periodicals (such as magazines and newspapers).

Addressing Fact Sheet for First-Class Flats

This document is for mailers who are sending flat-size mail (such as large envelopes) at Automation and Presorted First-Class Mail prices. To use these prices, you must mail at least 500 pieces at a time, prepared and sorted according to Postal Service guidelines.

Seamless Acceptance FAQs (October 21, 2020)

Service Performance Measurement Fact Sheet

This document provides information for Service Performance Measurement.

Customer Registration Identification (CRID) and Mailer Identifier (MID) Acquisition Fact Sheet

This document provides an overview of the methods customers can use to request a Mailer ID (MID) or Customer Registration ID (CRID) from the Postal Service.

By/For Relationship in Electronic Documentation Fact Sheet

Address Change Service (ACS) with Green & Secure Fact Sheet

USPS Picture Permit® Indicia (PPI) Fact Sheet

A quick overview of the benefits of PPi, how to participate, and who to contact with questions. 

Direct Effect® Innovation Challenge Overview

This one-pager provides a summary describing the Direct Effect Innovation Challenge format.