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For those new to Intelligent Mail, there are several guides, specifications and manuals that will get you started and give a broad overview of the fundamentals of the program. Following is a list of primary sources of information.

Federal Register Notice/ Vol. 73, No. 163/, August 21, 2008: Implementation of New Standards for Intelligent Mail Barcodes
The Federal Register Notice outlines the key elements of the Basic and Full-Service Intelligent Mail barcode options. It also provides a timeline and the requirements for using Intelligent Mail services. The Federal Register Notice can be found at http://www.gpo.gov/fdsys/pkg/FR-2008-08-21/pdf/E8-19339.pdf.

A Resource Map to Intelligent Mail Documents (PDF)
A Resource Map to Intelligent Mail Documents lists all the documents, guides and source materials that you will need in transitioning to Intelligent Mail services.

It provides explanations of each document and information on how to find and print these documents. It is a reference source that will help you as you learn the ins-and-outs of Intelligent Mail services.

A Guide to Intelligent Mail for Letters and Flats (PDF)
A Guide to Intelligent Mail for Letters and Flats provides guidance on how to prepare your mail and electronic documentation and identifies the data that will be provided at no additional charge for Full-Service compliance. In addition, the Guide also describes what will be available in the first release of Intelligent Mail services.

Postal Service Mail.dat Technical Specification
The Postal Service Mail.dat Technical Specification provides detailed specifications for how to populate your Mail.dat files to comply with the requirements for the Full-Service option. This technical specification explains the eDoc, postage, and induction requirements on how to use Mail.dat with the PostalOne! System. The technical specifications are arranged according to release and located on the Full Service Release page.

Postal Service Mail.XML Technical Specification

The Postal Service Mail.XML Technical Specification outlines the specifications for the messages used to send and receive data from PostalOne!. This technical specification explains FAST appointment scheduling, Full Service Data Distribution (ACS COA, ACS Nixie, Start-The-Clock), eDoc postage and electronic induction status management through Mail.XML messaging. The technical specifications are arranged according to release and located on the Full Service Release page.

Contact Information:

Important Updates

The "Heartbleed" bug hasn't affected Postal Service websites that require customers to provide usernames and passwords, according to USPS IT and the Corporate Information Security Office (CISO). To learn more information, click here.


Standard Mail DSCF Load Leveling Final Rule Published in the Federal Register

The Postal Service has released its Federal Register final rule revising the service standards for Standard Mail that is eligible for Destination Sectional Center Facility (DSCF) rates. These changes will allow a more balanced distribution of DSCF Standard Mail across delivery days. With its new rules, USPS is extending delivery expectation to four days for mail entered on Friday and Saturday. National Implementation began April 10, 2014.


January 2014 Price Change Fact Sheets


Getting Started with Full-Service Intelligent Mail


PostalOne! Contingency Plan

For mailers unable to submit electronic information, click here for the PostalOne! Contingency Plan.











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