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CBP enhanced ACE truck manifests to capture ATA Carnet data starting March 2026
CBP announced that on March 24, 2026 it enhanced the Automated Commercial Environment (ACE) to let trade users include ATA Carnet information in electronic truck manifest filings. CBP held a support call on March 31, 2026 to answer trade questions about the change. The message was aimed at carriers and other filers submitting truck manifests through ACE.
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This update affects truck manifest filings, not the formal, informal, mail or e-commerce entries we file for clients. We have no indication that later CSMS messages changed this ACE feature. Clients who move goods under ATA Carnets by truck and have questions about how this affects their shipments should ask us to review their specific movements.
CBP added ATA Carnet data fields to ACE truck manifest filings starting March 24, 2026
CBP announced that on March 24, 2026 it enhanced ACE to let trade users submit ATA Carnet information as part of an electronic truck manifest filing. The update included EDI impacts and CBP published a trade information notice with details. The change applied to truck manifest filers moving goods under carnet.
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This update concerns carriers and filers who submit electronic truck manifests, not the entries we file for importers. It does not change how we file formal, informal or other entry types for clients. Clients do not need to take any action on this notice.
CBP added ATA Carnet data fields to ACE truck manifest filings in March 2026
CBP announced that on March 24, 2026 it enhanced the Automated Commercial Environment (ACE) to let trade users include ATA Carnet information in electronic truck manifest filings. The update involved electronic data interchange (EDI) changes. CBP referred filers to an attached information notice for details.
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This was a system enhancement for truck manifest filers and did not require action from importers or shippers. It concerned how carrier and broker EDI systems transmit carnet data to CBP, not the goods or duties on an entry. Clients do not need to act on this notice; if a specific truck shipment involving an ATA Carnet needs review, ask Allied about that entry.
CBP added carnet number fields to truck import manifests in ACE
CBP announced it updated ACE truck manifest systems to let filers submit a Carnet number and expiration date. The update added new codes for Carnet in the ANSI X12 and EDIFACT truck manifest formats, plus two new error codes for missing or invalid carnet data. CBP said it planned to deploy the changes to production on March 24, 2026. The change affects software developers and trade filers who submit truck manifests by EDI.
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This was a technical update to CBP's manifest system for truck carriers and their EDI software providers, not a change to entry or duty rules. Since the deployment date has passed, we expect these carnet fields and error codes are now active in production for truck manifest filings. Clients do not need to take any action on this notice; if a shipment involves a carnet, clients should ask us to confirm how it was reported.
CBP added carnet reference codes to ACE truck manifest messages
CBP announced updates to ACE truck manifest implementation guides to add new codes for Carnets, including a Bill of Lading Type code, Carnet Number and Carnet Expiration reference qualifiers, and related error codes. The changes let filers submit a Carnet number and expiration date in the Import Truck Manifest to improve processing at ports of entry. CBP said trade parties and software developers using EDI must update their systems, and that Certification and Production dates would be announced in a future CSMS.
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This message concerns EDI formatting for truck carriers and software providers, not the entries we file for importers. We do not manage truck manifest EDI transmissions, so this update does not change how we process client entries. Clients do not need to act, and a later CSMS may have set the actual effective dates, so ask us if you have a specific carnet shipment question.
The summaries and positions are general information, not legal advice. Always check the official CBP message, which each page links to.
Does a change affect your entries?
Call (908) 291-8001 or email info@alliedchb.com