CSMS 67120036·System update·December 16, 2025·View on csms.cbp.gov ↗

Updates to ACE Truck CAMIR - New Carnet Codes

Plain-English explanation

CSMS 67120036 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on December 16, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Updates to ACE Truck CAMIR - New Carnet Codes". CSMS messages are the operational layer between Commerce determinations and at-the-border collections: when Commerce publishes a new rate, scope ruling, or instruction, CBP turns it into a CSMS that ACE/ACS systems and brokers act on.

Message body

Full text as published by U.S. Customs and Border Protection

Cargo Systems Messaging Service CSMS # 67120036 - Updates to ACE Truck CAMIR - New Carnet Codes U.S. Customs and Border Protection (CBP) has updated the following Automated Commercial Environment (ACE) truck implementation guides: ANSI X12 Truck 309 Customs Manifest Add new Bill of Lading Type code for Carnet (40) Add new Reference Identification Qualifier for “Carnet Number” (CRN) and “Carnet Expiration” (CRE) EDIFACT Truck CUSCAR Import Manifest Add new Document Name code type for Carnet (40) Add new Document Name code for “Carnet Number” (960) and “Carnet Expiration” (961) EDIFACT Truck CUSRES Accept/Reject Manifest and ANSI X12 Truck 355 Accept/Reject Manifest Add new error codes 551 – INVALID OR MISSING CARNET NUMBER 552 – INVALID OR MISSING CARNET EXPIRATION DATE Please note that these updates are part of an ACE enhancement that will allow filers to submit a Carnet # and a Carnet expiration date in Import Truck Manifest to improve processing of Carnets at ports of entry. Trade and Software Developers that submit via the Electronic Data Interface (EDI) will need to make the appropriate updates to incorporate these changes. The Certification (CERT) and Production (PROD) dates for these specific technical changes will be announced in a future CSMS. Please reach out to your Client Representative if you have any technical-related questions. For any questions about this update, please email CREM@cbp.dhs.gov .

Frequently asked questions

What is CSMS 67120036?

CSMS 67120036 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Updates to ACE Truck CAMIR - New Carnet Codes". CSMS bulletins are the operational instructions CBP issues to brokers, importers, and ACE filers covering rate changes, system updates, scope guidance, and other day-to-day customs-operations changes.

When was CSMS 67120036 published?

CBP published CSMS 67120036 on December 16, 2025. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Is the CBP CSMS the legally binding instruction?

Yes — for at-the-border filing and entry collection. CSMS messages translate Commerce's Federal Register determinations into operational CBP instructions that ACE/ACS systems and brokers execute. The Federal Register notice is the underlying legal authority; the CSMS is the operational implementation. Both should be read together when reconciling a rate or scope change.

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