# AMS filing

*Last updated: 2026-06-22*

> AMS filing – short for Automated Manifest System filing – is the mandatory electronic advance cargo declaration submitted to U.S.

AMS filing – short for Automated Manifest System filing – is the mandatory electronic advance cargo declaration submitted to U.S. Customs and Border Protection (CBP) before goods enter the United States. For ocean freight, the 24-hour rule applies: carriers must transmit shipper name, consignee, commodity description, weight, and routing at least 24 hours before loading at the foreign port. Air cargo operates under separate advance-notice requirements. Depending on the contractual arrangement, both the ocean carrier and the freight forwarder may hold independent filing obligations. Inaccurate, incomplete, or late submissions can trigger a 'Do Not Load' hold or financial penalties from CBP. For compliance teams handling US-bound shipments, AMS filing is a non-negotiable step in every pre-shipment workflow.

**Source:** [https://www.cbp.gov/trade/automated/ams](https://www.cbp.gov/trade/automated/ams)

## Quick Facts

| Property | Value |
|---|---|
| Term | AMS filing |
| Language | EN |
| Word count | 117 |
| Last updated | 2026-06-22 |
| Source | https://www.cbp.gov/trade/automated/ams |

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