Automated Manifest System (AMS) is a term still used in freight operations for electronic manifest reporting to U.S. Customs and Border Protection (CBP). Modern electronic manifest processing is handled through CBP’s Automated Commercial Environment (ACE), which receives shipment and conveyance data so authorities can assess risk and target inspections.
How AMS is used
For ocean and air shipments involving the United States, manifest data is typically transmitted by the carrier or an authorized filing party, such as a freight forwarder or customs broker acting within its authority. The data usually includes shipment identifiers, consignee or shipper details, routing, and cargo description, although the exact content and timing depend on the transport mode and applicable filing rules.
Importers and exporters usually do not submit manifest data themselves unless they are set up to do so. Instead, they should provide accurate commercial documents and shipping instructions, because mismatched names, vague descriptions, or incomplete container information can delay clearance or trigger follow-up from customs or the carrier.
Manifest reporting is related to, but not the same as, the customs entry process. A shipment can be manifested through ACE yet still require separate customs documentation, duty payment, and admissibility review before release. For example, a U.S.-bound ocean container may be listed in the carrier’s manifest well before arrival, while the importer’s broker later files the entry package tied to that same cargo.