This transaction set communicates the archive status of automated manifests filed with U.S. Customs and Border Protection. U.S. Customs generates and sends the 354 to freight forwarders, customs brokers, and ocean carriers in response to manifest filing submissions. The transmission provides structured status information about whether manifests are eligible for archival or have become overdue. Key segments include the M10 (Manifest Identifying Information), which anchors each status report with manifest reference details; the P4 (U.S. Port Information), which specifies the port location associated with the manifest; and the X01 (Automated Manifest Archive Status Details), which conveys the current archival status determination for the manifest.

Consider a scenario where Ocean Freight Solutions, a customs broker, filed an automated manifest with CBP for a shipment arriving at the Port of Long Beach. After the appropriate retention period, CBP generates an X12 354 transmission back to Ocean Freight Solutions confirming that the manifest is now eligible for archive. The transaction set identifies the specific manifest through the M10 segment, indicates the Port of Long Beach via the P4 segment, and specifies the eligible-for-archive status in the X01 segment. Ocean Freight Solutions receives this confirmation and updates its internal document management system to reflect that the manifest may be moved to long-term storage per regulatory requirements.