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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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Foundations

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Standards

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Flagship messages

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Tools

X12 353 — Customs Events Advisory Details

The 353 transmits detailed customs events — exam hold, release, fumigation, intensive inspection — from a customs administration to a broker or carrier.

Purpose

The 353 documents tracer events of a customs operation: exam selection, hold placement, release, fumigation order, X-ray screening, intensive examination. It is typically emitted by US CBP via ACE (Automated Commercial Environment).

It complements the 350 (Customs Status) by carrying event-level detail. Acknowledged by 997. Critical for supply chain risk management.

Envelope structure

The 353 travels within the three X12 envelope levels (ISA/IEA, GS/GE with functional group AE, and ST/SE). Didactic example in release 004010:

x12 example-353.x12 
ISA*00*          *00*          *ZZ*USCBP         *ZZ*CUSTOMSBROKER *260515*1230*U*00401*000000353*0*P*>~
GS*AE*USCBP*CUSTOMSBROKER*20260515*1230*1*X*004010~
ST*353*0001~
M10*USCBP*A*ENTRY-2026-9911~
N9*BM*BL-2026-7788~
N9*EQ*MSCU1234567~
MAN*CP*EXAM-HOLD~
DTM*036*20260515*1215~
SE*7*0001~
GE*1*1~
IEA*1*000000353~

Common segments

  • Header — ST, M10 (Manifest Identifying Information).
  • BL / Container reference — N9*BM, N9*EQ.
  • Event — MAN*CP (Customs Process — HOLD, RELEASE, EXAM).
  • Timestamp — DTM*036 with hour.
  • Summary — SE.

Common pitfalls

  • Hold types: a VACIS X-ray hold differs in duration from a MET intensive exam; mixing them up leads to wrong customer notice.
  • Release timestamp: the CBP release timestamp is the legal reference to start terminal free-time; missing it costs demurrage.
  • Multi-leg routing: a 353 for a port transshipment must reference BOTH BLs (mother + house), otherwise tracking breaks.

Documentation

The code 353 and the name Customs Events Advisory Details 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.