Fact Sheets
03/03/2026
Ancillary Service Endorsement Fact Sheet

Ancillary service endorsements are used by mailers to request an addressee’s new address or the reason mail cannot be
delivered as addressed and to provide the US Postal Service with instructions on how to handle Undeliverable As Addressed
(UAA) mailpieces.

Fact Sheets
02/12/2026
Manifest Mailing Systems Retirement Fact Sheet

The USPS is amending Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM) subsection 703.2.0 to retire the manifest mailing system (MMS). Effective April 1, 2026.

Fact Sheets
12/18/2025
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. 

Fact Sheets
12/16/2025
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.

Fact Sheets
11/12/2025
USPS Ship Package Data Feeds

This document outlines the steps for shippers to access package data feeds through the USPS Informed Visibility Mail Tracking & Reporting (IV-MTR) application.

Fact Sheets
09/24/2025
Mailpiece Design Analyst (MDA) Customer Service Help Desk Brochure

An overview brochure for the MDA Customer Service Help Desk, including services, benefits, and contact information.

Fact Sheets
08/26/2025
Fact Sheets
08/20/2025
Fact Sheets
07/17/2025
Licensing Fees

This document contains information about licensing fees for USPS® Licensed Products.

Fact Sheets
07/13/2025
Address Information System (AIS) Products Pricing

Pricing guide for Address Information System (AIS) products, including Carrier Route, ZIP + 4®, Five-Digit ZIP®, City State, Delivery Statistics, Z4Change, ZIPMove, eLOT®, and RDI™.

Fact Sheets
07/07/2025
About Mailers' Technical Advisory Committee (MTAC) User Group 2

This document provides a brief description of MTAC User Group 2 for PTR and eVS/USPS Ship and provides a contact for joining the group.

Fact Sheets
07/07/2025
Fact Sheets
07/07/2025
Intelligent Mail Tray Label Technical Fact Sheet

This document provides fact sheet providing technical specifications on the acquisition, implementation, and benefits of the Intelligent Mail Tray Label.

Fact Sheets
06/26/2025
About Mailers' Technical Advisory Committee (MTAC) User Group 4

This document provides a brief description of MTAC User Group 4 for mail visibility and provides a contact for requesting to join the group.

Fact Sheets
06/16/2025
Fact Sheets
05/23/2025
SD Data Security Considerations and Comparisons Guidance

This document provides additional information on Secure Destruction and general information security.

Fact Sheets
05/06/2025
eVS and USPS Ship Online Report and IV®-MTR Data Feed Comparison

eVS and USPS Ship Online Report and Informed Visibility® Mail Tracking & Reporting IV®-MTR Data Feed Comparison

Fact Sheets
04/14/2025
Mail Anywhere Fact Sheet

Mailers have the opportunity to use the same permit at any location via the Mail Anywhere program. 

Fact Sheets
12/24/2024
Fact Sheets
12/20/2024
Newspaper Mail Preparation & Entry

Guidance for Newspaper Publishers 

Fact Sheets
12/20/2024
Periodicals: Customer Service Issues

Guidance for Resolving Periodicals Delivery Issues

Fact Sheets
12/05/2024
NCOALink® End User Monthly Electronic Product Fulfillment (EPF) Schedule

This document provides information on the NCOALink® End User Monthly Fulfillment Schedule for EPF.

Fact Sheets
10/30/2024
Seamless Acceptance: Mailer Fact Sheet

Participation Criteria To participate in Seamless Acceptance all pieces must be uniquely barcoded, included in electronic documentation (eDoc) and mailers must meet the following requirements:

•Meet all the content and price eligibility standards for the price claimed.

     *There is no minimum activity specific to Seamless Acceptance.

•Prepare eligible volume as Full-Service

•Participate in the Seamless Parallel Program

•Participate in eInduction for DMU-verified origin entry or destination entry-drop shipments

Fact Sheets
09/13/2024
Seamless Acceptance Incentive Fact Sheet

Information regarding eligibility, rules, and requirements for the Seamless Incentive.
 

Fact Sheets
08/23/2024
USPS Nonprofit Marketing Mail Fact Sheet

For Nonprofit Organizations Seeking to Mail at Reduced Postage Prices.

Fact Sheets
08/23/2024
Periodicals: Statement of Ownership

Periodicals: Statement of Ownership Fact Sheet (PS Form 3526 / PS Form 3526-R).

Fact Sheets
08/23/2024
Periodicals - Identification (ID) Statement

Description of the content requirements for all Periodicals ID Statements. 

Fact Sheets
08/20/2024
Postal Wizard Fact Sheet

Postal Wizard is an online tool that gives small-volume mailers a secure, electronic means for submitting postage statements and simplifies calculating postage, checking balance and fees, and viewing mailing reports and mailing history.

Fact Sheets
08/13/2024
Full-Service Intelligent Mail® Fact Sheet

This document covers benefits, requirements, and resources for Full‐Service Intelligent Mail®.

Fact Sheets
08/12/2024
JACKPOT CRID/MID Process for Mail Service Providers

MSP’s who prepare mailings that include multiple mail owners in a mailing with less than 5,000 pieces per owner and are meeting 90% Full-Service of eligible volume, may request authorization to use a  JACKPOT CRID/MID for identification of this volume. Correct use of this authorized JACKPOT CRID/MID will eliminate error code 7140 reporting for mailers that are preparing mail under the By/For Exception rule when a mail owner is presenting fewer than 5,000 pieces to the USPS in a mailing.

Fact Sheets
07/16/2024
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.

Fact Sheets
07/05/2024
Locale Type Codes

Listing of available Locale Type Codes

Fact Sheets
06/20/2024
TED-C Mailpieces & Informed Delivery®

To ensure die-cut visibility for Informed Delivery® recipients, the leftmost edge of the die-cut extension must be in Zone C of the TED-C Letter Template. If the die-cut extension's leftmost edge is not in ZONE C, it may be acceptable to mail, but there may not be any visibility of the die-cut in Informed Delivery® for recipients.

Fact Sheets
04/18/2024
Service Type Identifier (STID) Table Effective January 21, 2024

The STID (Service Type Identifier) is a three-digit numeric code used within the Intelligent Mail® barcode (IMb™) on a mailpiece that identifies the address correction or other electronic services desired. The STID Table allows you to determine which STID to use based on the mail class, address correction option, use of IV®-MTR and whether the mail contains a Full Service or Basic IMb.

Fact Sheets
01/18/2024
Fact Sheets
01/09/2024
Fact Sheets
12/15/2023
Fact Sheets
10/25/2023