CUSDEC Customs declaration message (D12A)

This is the standard EDIFACT D12A spec, with 52 loops and 165 segment positions, as OpenEDI JSON, an ediFabric C# template and an ediFabric Native model. To change it for a trading partner, customize it in the EDI Spec Builder.

Loading the spec…

The spec as an OpenAPI 3 schema with x-openedi-* extensions, for ediFabric Native, ediFabric Cloud and the EDI Spec Builder. Download OpenEDI (125 KB) Generate classes

The ediFabric .NET template, class TSCUSDEC. It needs the common segments, composites and codes of EDIFACT D12A, one download for every transaction in the version. Download C# (2 KB) Common files (68 KB)

The intermediary model ediFabric Native loads with set_map. Native supports X12 today, and EDIFACT is coming. Download Native (1 KB)

Use the CUSDEC spec in your code

ediFabric .NET

Add the C# template and its common files to your project, or reference the template NuGet package, and read CUSDEC files into TSCUSDEC objects. See ediFabric .NET.

ediFabric Native

Native supports X12 today, and EDIFACT is coming. When it's available, map version D12A to this Native model with set_map to parse CUSDEC files to JSON from Python, Java, C or C#. See ediFabric Native.

OpenEDI

Select Customize in Spec Builder to copy the spec under your own name, change it for your partner, and parse files against it in EdiNation, ediFabric Native or ediFabric Cloud. Read about OpenEDI.

Generate CUSDEC classes in Python, Java, Node.js, Go, Rust or C

The OpenEDI file describes each CUSDEC as JSON. To work with CUSDEC data as typed objects, generate classes from the OpenEDI file in your language; the root class is TSCUSDEC. The classes keep the loops, segments, lengths and code lists, but not the EDI data formats. Read more in Generate a class from OpenEDI.

Python: datamodel-code-generator. Node.js: openapi-typescript. Java, Go, Rust and C: OpenAPI Generator.

CUSDEC structure

Loops and segments of the standard CUSDEC, with their usage and maximum repeats.

ID	Name	Usage	Max use
UNH	UNH	Mandatory	1
BGM	BGM	Mandatory	1
CST	CST	Optional	1
LOC	LOC	Optional	99
DTM	DTM	Optional	15
GEI	GEI	Optional	25
FII	FII	Optional	1
MEA	MEA	Optional	5
EQD	EQD	Optional	999
SEL	SEL	Optional	999
FTX	FTX	Optional	99
Loop RFF	RFF	Optional	99
RFF	RFF	Mandatory	1
DTM	DTM	Optional	1
Loop PAC	PAC	Optional	10
PAC	PAC	Mandatory	1
Loop PCI	PCI	Optional	999
PCI	PCI	Mandatory	1
FTX	FTX	Optional	1
Loop TDT	TDT	Optional	5
TDT	TDT	Mandatory	1
TPL	TPL	Optional	1
Loop DOC	DOC	Optional	99
DOC	DOC	Mandatory	1
DTM	DTM	Optional	2
LOC	LOC	Optional	1
Loop NAD	NAD	Optional	99
NAD	NAD	Mandatory	1
RFF	RFF	Optional	10
CTA	CTA	Optional	1
COM	COM	Optional	5
Loop TOD	TOD	Optional	1
TOD	TOD	Mandatory	1
LOC	LOC	Optional	2
FTX	FTX	Optional	1
Loop MOA	MOA	Optional	25
MOA	MOA	Mandatory	1
Loop CUX	CUX	Optional	1
CUX	CUX	Mandatory	1
DTM	DTM	Optional	1
Loop EFI	EFI	Optional	99
EFI	EFI	Mandatory	1
CED	CED	Optional	99
COM	COM	Optional	9
RFF	RFF	Optional	9
DTM	DTM	Optional	9
QTY	QTY	Optional	9
UNS	UNS	Mandatory	1
Loop DMS	DMS	Optional	999
DMS	DMS	Mandatory	1
DTM	DTM	Optional	1
MEA	MEA	Optional	5
Loop MOA	MOA	Optional	25
MOA	MOA	Mandatory	1
Loop CUX	CUX	Optional	1
CUX	CUX	Mandatory	1
DTM	DTM	Optional	1
Loop TOD	TOD	Optional	1
TOD	TOD	Mandatory	1
LOC	LOC	Optional	2
FTX	FTX	Optional	1
Loop NAD	NAD	Optional	10
NAD	NAD	Mandatory	1
Loop DOC	DOC	Optional	10
DOC	DOC	Mandatory	1
DTM	DTM	Optional	2
LOC	LOC	Optional	1
Loop PAC	PAC	Optional	10
PAC	PAC	Mandatory	1
Loop PCI	PCI	Optional	999
PCI	PCI	Mandatory	1
FTX	FTX	Optional	1
RFF	RFF	Optional	1
Loop PYT	PYT	Optional	5
PYT	PYT	Mandatory	1
MOA	MOA	Optional	1
PCD	PCD	Optional	1
FTX	FTX	Optional	1
Loop ALC	ALC	Optional	10
ALC	ALC	Mandatory	1
RTE	RTE	Optional	1
MOA	MOA	Optional	1
PCD	PCD	Optional	1
QTY	QTY	Optional	1
Loop CUX	CUX	Optional	1
CUX	CUX	Mandatory	1
DTM	DTM	Optional	1
Loop LIN	LIN	Optional	9999
LIN	LIN	Mandatory	1
PIA	PIA	Optional	1
QTY	QTY	Optional	1
PRI	PRI	Optional	2
PCD	PCD	Optional	1
MEA	MEA	Optional	15
QVR	QVR	Optional	5
MOA	MOA	Optional	15
NAD	NAD	Optional	10
GIR	GIR	Optional	9999
GEI	GEI	Optional	99
LOC	LOC	Optional	1
Loop DOC	DOC	Optional	10
DOC	DOC	Mandatory	1
DTM	DTM	Optional	2
Loop ALC	ALC	Optional	10
ALC	ALC	Mandatory	1
RTE	RTE	Optional	1
MOA	MOA	Optional	1
PCD	PCD	Optional	1
QTY	QTY	Optional	1
Loop CUX	CUX	Optional	1
CUX	CUX	Mandatory	1
DTM	DTM	Optional	1
Loop TOD	TOD	Optional	1
TOD	TOD	Mandatory	1
LOC	LOC	Optional	2
Loop PYT	PYT	Optional	5
PYT	PYT	Mandatory	1
MOA	MOA	Optional	1
PCD	PCD	Optional	1
FTX	FTX	Optional	1
Loop IMD	IMD	Optional	99
IMD	IMD	Mandatory	1
FTX	FTX	Optional	1
Loop PAC	PAC	Optional	10
PAC	PAC	Mandatory	1
Loop PCI	PCI	Optional	999
PCI	PCI	Mandatory	1
FTX	FTX	Optional	1
RFF	RFF	Optional	1
Loop EFI	EFI	Optional	99
EFI	EFI	Mandatory	1
CED	CED	Optional	99
COM	COM	Optional	9
RFF	RFF	Optional	9
DTM	DTM	Optional	9
QTY	QTY	Optional	9
Loop CST	CST	Optional	99999
CST	CST	Mandatory	1
FTX	FTX	Optional	9
LOC	LOC	Optional	25
DTM	DTM	Optional	5
MEA	MEA	Optional	20
NAD	NAD	Optional	5
TDT	TDT	Optional	9
Loop PAC	PAC	Optional	10
PAC	PAC	Mandatory	1
Loop PCI	PCI	Optional	999
PCI	PCI	Mandatory	1
FTX	FTX	Optional	1
Loop MOA	MOA	Optional	25
MOA	MOA	Mandatory	1
Loop CUX	CUX	Optional	1
CUX	CUX	Mandatory	1
DTM	DTM	Optional	1
Loop RFF	RFF	Optional	999
RFF	RFF	Mandatory	1
DTM	DTM	Optional	1
GIN	GIN	Optional	99
MOA	MOA	Optional	1
Loop IMD	IMD	Optional	1
IMD	IMD	Mandatory	1
FTX	FTX	Optional	5
Loop DOC	DOC	Optional	25
DOC	DOC	Mandatory	1
DTM	DTM	Optional	2
LOC	LOC	Optional	1
NAD	NAD	Optional	5
Loop TOD	TOD	Optional	1
TOD	TOD	Mandatory	1
LOC	LOC	Optional	2
FTX	FTX	Optional	1
Loop GDS	GDS	Optional	1
GDS	GDS	Mandatory	1
FTX	FTX	Optional	1
Loop GEI	GEI	Optional	25
GEI	GEI	Mandatory	1
PCD	PCD	Optional	1
DTM	DTM	Optional	1
RFF	RFF	Optional	1
Loop TAX	TAX	Optional	10
TAX	TAX	Mandatory	1
MOA	MOA	Optional	2
GEI	GEI	Optional	1
Loop QVR	QVR	Optional	1
QVR	QVR	Mandatory	1
QTY	QTY	Optional	1
Loop RFF	RFF	Optional	1
RFF	RFF	Mandatory	1
DTM	DTM	Optional	1
Loop GIR	GIR	Optional	50
GIR	GIR	Mandatory	1
GEI	GEI	Optional	10
NAD	NAD	Optional	1
MEA	MEA	Optional	5
Loop MOA	MOA	Optional	10
MOA	MOA	Mandatory	1
Loop CUX	CUX	Optional	1
CUX	CUX	Mandatory	1
DTM	DTM	Optional	1
Loop TAX	TAX	Optional	10
TAX	TAX	Mandatory	1
MOA	MOA	Optional	2
GEI	GEI	Optional	1
Loop DOC	DOC	Optional	5
DOC	DOC	Mandatory	1
DTM	DTM	Optional	2
LOC	LOC	Optional	1
UNS	UNS2	Mandatory	1
CNT	CNT	Optional	5
Loop TAX	TAX	Optional	50
TAX	TAX	Mandatory	1
MOA	MOA	Optional	2
GEI	GEI	Optional	1
Loop AUT	AUT	Optional	1
AUT	AUT	Mandatory	1
DTM	DTM	Optional	1
UNT	UNT	Mandatory	1