Contact Lists
02/01/2023
LACSLink® Distributors (PDF)

This document contains the contact list of LACSLink® distributors. 

Contact Lists
02/01/2023
LACSLink® Developers (PDF)

This document contains a contact list of LACSLink® developers.

Contact Lists
02/01/2023
LACSLink® Distributors (PDF)

This document contains the contact list of LACSLink® distributors. 

Contact Lists
02/01/2023
LACSLink® Developers (PDF)

This document contains a contact list of LACSLink® developers.

Announcements
01/30/2023
Modifications to LACSLink® Licenses and Supporting Documents

This document lists modifications to LACSLink® licenses and supporting documents.

Announcements
01/30/2023
Modifications to LACSLink® Licenses and Supporting Documents

This document lists modifications to LACSLink® licenses and supporting documents.

Fact Sheets
01/23/2023
Licensing Fees

This document contains information about licensing fees for USPS® Licensed Products.

Applications/ Forms
01/23/2023
LACSLink® Software Distribution License Agreement

This document contains the licensee agreement for LACSLink® software distribution.

Fact Sheets
01/23/2023
Licensing Fees

This document contains information about licensing fees for USPS® Licensed Products.

Applications/ Forms
01/23/2023
LACSLink® End User License Agreement

This document contains the End User License Agreement for LACSLink®.

Applications/ Forms
01/23/2023
LACSLink® Developer License Agreement

This document contains the developer license agreement for LACSLink®.

Data Files
01/09/2023
Cumulative Listing of ZIP Codes Covered by the LACS Database

This document provides a cumulative listing of ZIP Codes covered by the LACS database for LACSLink®.

Data Files
01/09/2023
Cumulative Listing of ZIP Codes Covered by the LACS Database

This document provides a cumulative listing of ZIP Codes covered by the LACS database for LACSLink®.

Quick Service Guides
12/06/2022
LACSLink® Developer Certification Procedures

This document contains developer procedures for LACSLink®.

User Guides
03/06/2018
LACSLink® User Technical Reference

This document provides a technical guide for LACSLink®.

User Guides
03/06/2018
LACSLink® User Technical Reference

This document provides a technical guide for LACSLink®.

Quick Service Guides
02/27/2018
LACSLink® End User Licensee Performance Requirements

This document provides facts and information on End User Licensee Performance for LACSLink®.

Quick Service Guides
02/27/2018
LACSLink® Developer Licensee Performance Requirements

This document contains a quick service guide to find for LACSLink® Developer Licensee Performance Requirements.

Fact Sheets
02/27/2018
LACSLink® Software Distribution Licensee Performance Requirements

This document contains the distribution licensee performance requirements for the LACSLink® product.

Quick Service Guides
02/22/2018
LACSLink® End User Certification Procedures

This document contains the quick service guide for LACSLink® End User Certification Procedures.

Quick Service Guides
02/22/2018
LACSLink® Software Interface Distributor Certification Procedures

This document provides additional information for Software Interface Distributor Certification Procedures LACSLink®.

Data Files
01/08/2018
LACSLink® Zip Codes

This text file includes the cumulative listing of ZIP(C) Codes covered by the LACS database.

Announcements
07/24/2017
Announcements
02/14/2017
Announcements
12/19/2016
Licensing Announcement: Reminder on SHA-256 Conversion

As a reminder, the USPS has begun the conversion of its licensed products from SHA‐1 to SHA‐256. This conversion is based on an OIG (Office of Inspector General) recommendation to transition USPS Licensed Products to a more secure algorithm to comply with current USPS security policies.

Announcements
03/25/2016
Licensing Announcement: LACSLink® File Size Expansion

In an effort to reduce the number of density-related collisions (false positives) in the LACSLink Product, the file size of the llk.hsa binary hash table will increase.

Publications
03/07/2016
Domestic Mail Manual (DMM®) 509: Address Information System Products

Address Management provides services that enable customers to manage thequality of their mailing lists while maximizing the Postal Service's ability to efficiently deliver mail.

Announcements
01/26/2016
Licensing Announcement: Issue with Downloading Both SHA-1 and SHA-256 Products on Electronic Product Fulfillment (EPF)

This announcement details an issue with downloading both the SHA‐1 and SHA‐256 versions of the products using the SOAP Web Services (ColdFusion).

Announcements
01/07/2016
Licensing Announcement: SHA-256 Products on Electronic Product Fulfillment (EPF)

To comply with the recommendations from the December 2014 Office of Inspector (OIG) audit of the NCOALink® program, the USPS® will begin the transition from SHA‐1 to SHA‐256 technology as the method for data encryption.

Quick Service Guides
10/01/2014
LACSLink® Software Interface Distributor Performance Requirements

This document contains information on LACSLink® Software Interface Distributor Performance Requirements.

Presentations
03/15/2014
Postal Customer Council (PCC) Workshop: NCOA vs. ACS™: Which is Best?

This presentation provides a comparison of both NCOA and ACS.

Announcements
03/14/2014
Licensing Announcement: Reminder on Electronic Product Fulfillment (EPF) Server Migration

As a reminder, the Electronic Product Fulfillment (EPF) website will be migrated to a new server Saturday, March 15.

Applications/ Forms
04/01/2009
Licensing and Certification Key Personnel Form for LACSLink®

This document provides information on Licensing and Certification Key Personnel Form for LACSLink®.

Announcements
02/01/2008
February 1, 2008 Licensing Announcements

This is an announcement concerning the centralized email account and the proper use of the term ‘Intelligent Mail®.’

Announcements
05/01/2007
LACSLink® Licensee Performance Requirements Updates

This document provides updates and realease information on LACSLink® lincensee performance requirements.