CSMS #67951279Thursday, March 5, 2026
System UpdateMedium UrgencyAction Required

Update to Electronic Export Manifest (EEM) – Truck Manifest Implementation Guide (IG) 355 Acceptance/Rejection Message

U.S. Customs and Border Protection has updated the Electronic Export Manifest (EEM) Automated Commercial Environment (ACE) Exports Truck X12- 355 Acceptance/Rejection Message Implementation Guide (IG).
Updates implemented:
 * Typo updated from DM02 to DMG02 
 * Max Use in REF segment updated from 10 to 1 
 * Max Use in VEH segment updated from 10 to 1 
For questions:
 * Technical inquiries should be directed to your assigned CBP Client Representative. 
 * Policy inquiries may be submitted to cbpexportmanifest@cbp.dhs.gov.

Additional Information

Programs Affected:
ACE