Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
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This page provides the message formats and technical specifications necessary to electronically transmit data to CBP's automated systems.
| Attachment | Ext. | Size | Date |
|---|---|---|---|
| ACE Customs Response Message | 1.27 MB | 11/14/2024 |
0875-0419
