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Spotlight PEPPOL BIS Billing 3.0 The EU e-invoicing mandate is here — France Sept 2026, Belgium Jan 2026, Germany 2025.

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X12 357 — U.S. Customs In-Bond Information

The 357 documents the in-bond movement of cargo under US Customs control between a port of entry and an inland or exit port without intermediate clearance.

Purpose

The 357 is the EDI instrument of the CBP In-Bond program: it carries the IT (Immediate Transportation), T&E (Transportation and Exportation) or IE (Immediate Exportation) number, the bonded carrier (surety bond), the route, the unit, and the destination port.

It is used in intermodal flows (east-coast port → bonded Chicago warehouse, port → Mexican border for export) and is part of the CBP e-Manifest. Acknowledged by 997, it triggers a 355 confirming the movement authorisation.

Envelope structure

The 357 travels within the three X12 envelope levels (ISA/IEA, GS/GE with functional group IB, and ST/SE). Didactic example in release 004010:

x12 example-357.x12 
ISA*00*          *00*          *ZZ*ACMECARRIER   *ZZ*USCBPACE      *260514*1700*U*00401*000000357*0*P*>~
GS*IB*ACMECARRIER*USCBPACE*20260514*1700*1*X*004010~
ST*357*0001~
M11*ACME LINES*IT-2026-0042*1AN*USNYC*USCHI*20260514~
N9*MA*MAN-2026-NYC-0098~
N7*MSCU*4501230*22G1~
M7*MSCU SEAL 887766~
N1*BO*ACME BONDED CARRIER*46*BOND-887766~
DTM*371*20260530~
SE*9*0001~
GE*1*1~
IEA*1*000000357~

Common segments

  • Header — ST, M11 (Beginning Segment for In-Bond Movement Information), N9 (Manifest reference).
  • Unit — N7 (Equipment), M7 (Seal Numbers).
  • Bond — N1*BO (Bonded Carrier) with surety-bond number, REF (continuous bond, single transaction).
  • Destination — DTM*371 (expected arrival date at destination port), R4 (destination port).
  • Summary — SE.

Common pitfalls

  • Bond type: IT, T&E and IE are not interchangeable; picking the wrong qualifier in M1103 invalidates the bond and exposes the carrier to a bond claim.
  • 30-day window: CBP rule 19 CFR 18 caps the in-bond movement at 30 days; without a coherent DTM*371, the 357 is rejected on temporal validation.
  • Route change: a diversion requires a 357 amendment, not a fresh 357 — otherwise two movements stack up and the bond is doubly committed.

Documentation

The code 357 and the name U.S. Customs In-Bond Information are public and listed on x12.org/products/transaction-sets. The complete structure of loops, qualifiers and code lists is distributed by DISA via the proprietary Implementation Guides (TR3). ediverse.io covers only public concepts, the envelope and didactic examples.