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.
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.
11/05/2019
10/18/2019
Traditional ACS™ Technical Guide
This document is a guide that provides technical information about Traditional ACS™.
10/18/2019
SingleSource ACS™ Technical Guide
This guide is a technical reference for SingleSource ACS. Includes how ACS works, participation requirements, and fulfillment files.
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®.
09/12/2019
Secure Destruction Technical Guide
A technical reference for implementing the Secure Destruction process.
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.
07/28/2013
Appendix D: Glossary of ACS™ Acronyms and Terminology
This document contains a glossary of ACS™ terms.
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).