Quick Service Guides
11/13/2017
Mailers' Technical Advisory Committee (MTAC) Task Team Guidelines

An MTAC Task Team is comprised of industry and postal participants who are focused on a clearly defined ask with a strict deadline. This document provides guidelines for Task Teams.

Release Notes
11/09/2017
PostalOne! R47.0.0.0 Pre-Release Notes-Change 1.1

January Pre-release notes. Change 1.1.

Error Codes
11/09/2017
Mail.dat Validations R47 (PDF Version)

Postal Service eDoc Error Codes

Error Codes
11/09/2017
Tech Guides
11/09/2017
Mail.dat Technical Specifications R47 V3

Version 3 of the comprehensive technical guide that outlines steps for exchanging electronic data with the PostalOne! system.

Data Files
11/04/2017
Address Information System (AIS) Area District Record Description

File layout for Address Information System (AIS) area district record descriptions.

Release Notes
11/03/2017
PostalOne! R47.0.0.0 Pre-Release Notes Change 1.0

January pre-release notes. Change 1.

Release Notes
10/30/2017
Tech Guides
10/27/2017
Guide to Postage Assessment

For postage assessment information please see the attached guide to Streamlined Mail Acceptance for Letters and Flats.

 

Technical Specifications
10/22/2017
Release Notes
10/19/2017
Announcements
10/03/2017
Hurricane Information

For updates of operations please follow this link to USPS Service Alerts

 

 

Data Files
10/01/2017
L607 3-Digit ZIP Code Sort Option for Drop-Ship Mailers

L607 lists the 5-digit ZIP Codes for machinable parcels eligible to be entered at designated SCFs when sorted into 3-digit containers. The corresponding rate eligibility and mail preparation standards are described in 456.2.2, 466.4.1, and 466.4.2.

 

Data Files
10/01/2017
L605 NDCs/ASFs: Nonmachinable Parcel Select

L605 describes the service area by individual 3-digit ZIP Code prefix for Parcel Select mailers preparing mailings of nonmachinable parcels.

 

Data Files
10/01/2017
L601 National Distribution Centers (NDCs)

L601 describes the service area by individual 3-digit ZIP Code prefix for sorting mail to NDC destinations.