Tech Guides
05/25/2023
PostalOne! Release 58.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 58.0.0.0

Tech Guides
05/25/2023
PostalOne! Release 58.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 58.0.0.0

Tech Guides
05/25/2023
PostalOne! Release 58.0.0.0 Mail.XML PrePROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PrePROD Release 58.0.0.0

Tech Guides
05/25/2023
PostalOne! Release 58.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 58.0.0.0

Tech Guides
05/01/2023
IV-MTR API Developer Toolkit

The Developer Toolkit provides information about using the Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Application Programming Interface (API). The API enables the mailing industry to integrate mobile and web-based applications with near real-time IV-MTR data through a lightweight data exchange.

Tech Guides
04/26/2023
Tech Guides
04/18/2023
NCOALink® User Technical Reference Guide

This document is a technical reference guide for NCOALink®.

Tech Guides
11/09/2022
PostalOne! Release 57.0.0.0 Mail.XML PrePROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PrePROD Release 57.0.0.0

Tech Guides
11/09/2022
PostalOne! Release 57.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 57.0.0.0

Tech Guides
11/09/2022
PostalOne! Release 57.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 57.0.0.0

Tech Guides
11/09/2022
PostalOne! Release 57.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 57.0.0.0

Tech Guides
09/07/2022
Informed Delivery API Technical Specifications v4.1.0 9-1-2022

This is the Technical Specifications guide for the Informed Delivery API - Release 4.1.0 on 9/1/2022

Tech Guides
06/28/2022
Informed Delivery Mailer Onboarding Guide

This is the Mailer Onboarding Guide to assist in the initial set up to submit Informed Delivery Campaigns via eDoc in the CAT (Customer Acceptance Testing) environment. This covers how to set up a CAT Business Customer Gateway (BCG) account and permit for testing Mail.dat and Mail.XML eDoc submissions that include campaign data to create Informed Delivery Campaigns via PostalOne!

All new BCG accounts will need to be verified and approved by the CAT Help Desk before they can be used for testing.

Tech Guides
06/01/2022
Informed Delivery API Technical Specifications v4.0.1 6-1-2022

This is the Technical Specifications guide for the Informed Delivery API - Release 4.0.1

Tech Guides
05/24/2022
PostalOne! Release 55.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 55.0.0.0

Tech Guides
05/24/2022
PostalOne! Release 55.0.0.0 Mail.XML PrePROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PrePROD Release 55.0.0.0

Tech Guides
05/24/2022
PostalOne! Release 55.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 55.0.0.0

Tech Guides
05/16/2022
Address Information System (AIS) Products Technical Guide

The Address Information System (AIS) Products Technical Guide contains documentation on all AIS products, including RDI, Z4Change, ZIPMove, ZIP + 4®, Five-Digit ZIP®, eLOT®, Carrier Route, City State, and Delivery Statistics.

Tech Guides
04/26/2022
How to Access the SPM Exclusions by CRID Application

Step-by-step instructions on how access the SPM Exclusions by CRID application through the Business Customer Gateway.

Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 53.0.0.0

Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML PrePROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PrePROD Release 53.0.0.0

Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 53.0.0.0

Tech Guides
07/15/2021
PostalOne! Release 53.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 53.0.0.0

Tech Guides
05/24/2021
PostalOne! Release 55.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 55.0.0.0

Tech Guides
02/01/2021
eVS® File Format v2.0

Appendix C: Shipping Services File Version 2.0 (as of 12/31/2020).

Tech Guides
02/01/2021
eVS® File Format v1.7

Appendix B: Shipping Services File Version 1.7 (as of 12/31/2020).

Tech Guides
12/01/2020
Tech Guides
11/09/2020
PostalOne! Release 52.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 52.0.0.0

Tech Guides
11/09/2020
PostalOne! Release 52.0.0.0 Mail.XML PrePROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PrePROD Release 52.0.0.0

Tech Guides
11/09/2020
PostalOne! Release 52.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 52.0.0.0

Tech Guides
11/09/2020
PostalOne! Release 52.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 52.0.0.0

Tech Guides
08/13/2020
USPS Picture Permit® (PPI) Product Requirements

A guide to the PPi program that includes the following: background and product description, product parameters, registration and application requirements, mailing submission requirements, permit imprint requirements, picture permit design requirements, technical information, and program office contact information. 

Tech Guides
08/13/2020
USPS Picture Permit® Indicia (PPI) Technical Requirements Version 8.0

USPS Picture Permit® Indicia (PPI) provides organizations the opportunity to include their corporate logo, brand images, or trademarks in the permit indicia space of First-Class Mail® automation letters and postcards, and all USPS Marketing Maill® letters. The addition of images to the permit imprint indicia has the potential of increasing open rates and enhancing the value of the mail.

Tech Guides
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.

Tech Guides
10/18/2019
Traditional ACS™ Technical Guide

This document is a guide that provides technical information about Traditional ACS™.

Tech Guides
10/18/2019
OneCode ACS® Technical Guide

This guide provides technical references for OneCode ACS®.

Tech Guides
10/18/2019
ACS™ File Format Technical Guide

This document contains the technical guide for ACS file format.

Tech Guides
10/16/2019
Export Compliance Customs Data Requirements

Due to federal export regulations, USPS currently requires electronic customs information on all mail items that bear a customs declaration in order to facilitate federal oversight.

Tech Guides
03/22/2019
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Mail.XML Guide

This guide provides information about using MailXML™ to receive mail tracking data through the IV-MTR application. Through Mail.XML, mailers can receive visibility information for letter and flat containers and handling units (trays, tubs, and sacks).

Tech Guides
09/14/2018
Periodicals Accuracy, Grading, and Evaluation (PAGE) Technical Guide

This guide provides technical information for the PAGE program, which evaluates publication and print planning (ppp) software to determine its accuracy in calculating the percentage of advertising according to DMM® standards.

Tech Guides
03/02/2018
Advertising Technical Guide

Advertising technical guide for licensed products.

Tech Guides
02/28/2018
PostalOne! Release 47.1.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 47.1.0.0

Tech Guides
02/28/2018
PostalOne! Release 47.1.0.0 Mail.XML PrePROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PrePROD Release 47.1.0.0

Tech Guides
02/28/2018
PostalOne! Release 47.1.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 47.1.0.0

Tech Guides
02/28/2018
PostalOne! Release 47.1.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 47.1.0.0

Tech Guides
02/21/2018
MASS™ Technical Guide for Cycle N

This document provides a technical guide for MASS™ Cycle N. MASS™ is an extension of the CASS™ system. The MASS certification cycle is designed to evaluate the ability of MLOCRs and encoding stations to process address information and apply an accurate delivery point barcode (DPBC) to a mailpiece.