CBP posted new truck export manifest EDI guides in February 2026
CBP title: Electronic Export Manifest (EEM) – Truck Manifest Implementation Guide (IG) X.12 and UNEDIFACT Standard (version 1.0)
This message is from February 19, 2026. Later CSMS messages may have changed it. See the latest trade news
What did CBP announce?
CBP announced in February 2026 that it had posted new Truck Manifest implementation guides for the ACE Electronic Export Manifest system, covering X.12 and UNEDIFACT standards. These were the first versions of these guides, not updates to earlier ones. The guides covered truck carrier cargo, crew, passenger and conveyance reporting messages.
What is Allied's position?
This message concerns technical data formats that truck carriers and their software providers use to file export manifests with CBP. It does not change entry filing requirements for the entries we handle. Clients do not need to act on this notice.
General information, not legal advice.
What does the CBP message say?
U.S. Customs and Border Protection (CBP) has posted the Truck Manifest implementation guides for the Automated Commercial Environment (ACE) Electronic Export Manifest (EEM) system. Implementation guides for the X.12 and UNEDIFACT standards are now available here: ACE Electronic Export Manifest Information and Requirements (https://www.cbp.gov/trade/automated/how-to-use-ace/export-manifest).
New X.12 implementation guides include:
- Truck X12 - 309 Message
- Truck X12 - 350 Message
- Truck X12 - 353 Message
- Truck X12 - 355 Message
- Truck X12 - 358 Message
New Truck UNEDIFACT implementation guides include:
- Truck - PAXLST Manifest Crew and Passenger List
- Truck - Standard CUSCAR Cargo Report Message
- Truck - Standard CUSREP Conveyance Report Message
- Truck - Standard CUSRES Accept-Reject Message
- Truck - Standard CUSRES Status Notification Message
All X.12 and UNEDIFACT IGs are the first iterations of these documents and are not updates to prior IGs.
Policy-related questions can be directed to Outbound Enforcement & Policy at cbptruckexportmanifest@cbp.dhs.gov (mailto:cbptruckexportmanifest@cbp.dhs.gov).
Technical related questions can be directed to your assigned CBP Client Representative.