Applications/ Forms
05/23/2025
ACS™ Enrollment Form

This document is the enrollment form for ACS™.

Applications/ Forms
04/11/2025
Modifications to Population Mobility Trends License and Supporting Documents
Applications/ Forms
04/11/2025
Address Matching System API (AMS API) License Agreement Modifications

This Modifications document lists the changes to the current Address Matching System Application Program Interface (AMS API) Product License Agreement.

Applications/ Forms
04/11/2025
Address Matching System API (AMS API) Sample License Agreement

United States Postal Service® sample license agreement for the Address Matching System Application Program Interface (AMS API) Product.

Applications/ Forms
12/13/2024
Customer Outage Questionnaire

Use this document to report an outage or system errors.  Please send to PackageFraudPrevention@usps.gov and denote the e-mail as high importance.