Steps to Create the Intelligent Mail® Barcode
This document is a quick-reference guide for creating your Intelligent Mail® Barcodes.
Barcode Decoder/Encoder
The IMb encoder and decoder tool allows you to convert Intelligent Mail® barcodes into numeric equivalents, or vice versa.
05/08/2024
ACS™ Electronic Product Fulfillment (EPF) Download Manager Technical Guide
Documentation for the Client Side ACS™ EPF Download Manager software package.
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.
02/16/2024
Appendix A: Ancillary Service Type Identifier (STID) Details
Appendix A provides a detailed description of the various address correction options available within basic / Nonautomation and full-service mailings and the STIDs that provide the different undeliverable-as-addressed (UAA) treatments.
02/05/2024
Intelligent Mail® Package Barcode (IMpb) ACS™ Technical Guide
Technical guide for users of Intelligent Mail® Package Barcode (IMpb) Address Change Services (ACS). Includes a solution overview, features, participation requirements, and service endorsement options.
02/05/2024
Intelligent Mail® Package Barcode (IMpb) ACS™ Technical Guide
Technical guide for users of Intelligent Mail® Package Barcode (IMpb) Address Change Services (ACS). Includes a solution overview, features, participation requirements, and service endorsement options.
01/18/2024
Traditional ACS™ with Shipper Paid Services Technical Guide
This document is a guide that provides technical information about Traditional ACS™ with shipper paid services.
01/18/2024
Traditional ACS™ with Shipper Paid Services Technical Guide
This document is a guide that provides technical information about Traditional ACS™ with shipper paid services.
01/18/2024
Guide to Move Update
The Move Update standard is a means of reducing the number of mailpieces in a mailing that require forwarding or return by the periodic matching of a mailer’s address records with change-of-address orders received and maintained by the Postal Service.
12/01/2022
Electronic Product Fulfillment (EPF) Web Access Request Form (PS 5116)
This form is used to create a Web-based account with the Addressing and Geospatial Technology (AGT) office which will be utilized to retrieve/download files from the Electronic Product Fulfillment (EPF) website.
05/03/2022
Intelligent Mail® Barcode FAQ
This document includes frequently asked questions (FAQ) and answers for IMb.
05/02/2022
Mailer's Technical Advisory Committee - Best Practices for ACS™
This document is designed to enhance mailers' understanding of the US Postal Service's ACS™ product.
05/11/2021
Service Type Identifier (STID) Quick Service Guide
This document provides quick information about the STID (Service Type Identifier) - a three-digit numeric code used within the Intelligent Mail® barcode (IMb™).
02/01/2021
Mailer Identifier (MID) Application
Complete the following application to request a Mailer Identifier (MID) for use in the Intelligent Mail® container barcode, Intelligent Mail® tray barcode, or Intelligent Mail® barcode.
10/18/2019
OneCode ACS® Technical Guide
This guide provides technical references for OneCode ACS®.
10/18/2019
ACS™ File Format Technical Guide
This document contains the technical guide for ACS file format.
10/18/2019
OneCode ACS® Technical Guide
This guide provides technical references for OneCode ACS®.
07/30/2019
ACS™ Electronic Product Fulfillment (EPF) Download Manager Software (Client Side)
Please send an email to ACS@usps.gov requesting the current versions of the EPF download managers and documentation to create your own download manager.
03/15/2019
ACS™ Enrollment Form
Enrollment form for ACS™.
03/15/2019
ACS™ Enrollment Form
Enrollment form for ACS™.
07/25/2018
Appendix C: ACS™ Product Code Information and Details
This document provides ACS™ Product Codes, descriptions, classifications, shapes, and fees.
09/18/2017
ACS™ Product Information Guide: Publication 8
A complete overview of Address Change Services: eligibility, benefits, implementation, and technical specifications.
09/26/2016
Move Update Compliance for Non-U.S. Mailers FAQs
The U.S. Postal Service® has gathered some common questions asked by foreign mailers.
07/01/2016
Clarification to the Move Update Standard
This document contains information on the Move Update standards.
05/26/2015
ACS™ Electronic Product Fulfillment (EPF) Fulfillment File Access
Learn the different methods of accessing your ACS™ files from EPF.
05/26/2015
ACS™ Electronic Product Fulfillment (EPF) File Access
Instructions for accessing ACS Electronic Product Fulfillment (EPF) files.
04/20/2015
Intelligent Mail® Barcode (IMb) 4-State Specification
This document provides the specifications for generating and printing the Intelligent Mail® barcode (IMb) used in the U.S. Postal Service (USPS) mailstream.
01/16/2015
ACS™ File Format Sample File
Sample file formats for ACS™.
03/15/2014
Postal Customer Council (PCC) Workshop: NCOA vs. ACS™: Which is Best?
This presentation provides a comparison of both NCOA and ACS.
07/28/2013
Appendix B: ACS™ Frequently Asked Questions
This document provides frequently asked questions (FAQs) and answers about the Intelligent Mail® Barcode, Traditional ACS™, OneCode ACS™, Full Service ACS™, Single Source ACS™, and the Intelligent Mail® Package Barcode (IMpb).
07/28/2013
Appendix D: Glossary of ACS™ Acronyms and Terminology
This document contains a glossary of ACS™ terms.
01/02/2012
Traditional ACS™ Keyline Utility
Traditional Keyline Utility - Enter a keyline, see the check digit.
03/16/2010
Intelligent Mail® Barcode (IMb) Resources
This fact sheet provides a listing of Intelligent Mail Barcode resources.
05/08/2009
Traditional ACS™ MOD 10 Keyline Utility with Microsoft Excel®
ACS™ MOD 10 Keyline Utility utilizing Microsoft Excel®
01/01/2009
Intelligent Mail® Barcode Technical Resource Guide
This document contains the technical guide for Intelligent Mail® Barcode.
02/04/2008
Intelligent Mail® Barcode Resources
This document provides additional information and resources on IMb.