304 Shipping Instructions (006020)

This is the standard X12 006020 spec, with 26 loops and 134 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.

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The spec as an OpenAPI 3 schema with x-openedi-* extensions, for ediFabric Native, ediFabric Cloud and the EDI Spec Builder. Download OpenEDI (205 KB) Generate classes

The ediFabric .NET template, class TS304. It needs the common segments, composites and codes of X12 006020, one download for every transaction in the version. Download C# (2 KB) Common files (274 KB)

The intermediary model ediFabric Native loads with set_map. Download Native (172 KB)

Use the 304 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 304 files into TS304 objects. See ediFabric .NET.

ediFabric Native

Map version 006020 to the Native model with set_map, then parse 304 files to JSON from Python, Java, C or C#. See Convert between EDI and JSON.

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

ediFabric Native returns each 304 as JSON, with the property names of the OpenEDI schema. To work with that JSON as typed objects, generate classes from the OpenEDI file in your language and deserialize the JSON into TS304. Serialize the objects back to JSON to build EDI with ediFabric Native. The classes keep the loops, segments, lengths and code lists, but not the EDI data formats, so validate files with ediFabric Native. Read more in Generate a class from OpenEDI.

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

304 structure

Loops and segments of the standard 304, with their usage and maximum repeats.

ID	Name	Usage	Max use
ST	Transaction Set Header	Optional	1
B2	Beginning Segment for Shipment Information Transaction	Mandatory	1
B2A	Set Purpose	Optional	1
Y6	Authentication	Optional	2
G1	Shipment Type Information	Optional	1
G2	Beyond Routing	Optional	1
G3	Compensation Information	Optional	1
N9	Extended Reference Information	Optional	100
YNQ	Yes/No Question	Optional	10
V1	Vessel Identification	Optional	2
V3	Vessel Schedule	Optional	1
M0	Letter of Credit Reference	Optional	1
CUR	Currency	Optional	1
Loop M1	Insurance	Optional	5
M1	Insurance	Mandatory	1
CUR	Currency	Optional	1
M2	Sales/Delivery Terms	Optional	1
C2	Bank ID	Optional	1
ITD	Terms of Sale/Deferred Terms of Sale	Optional	1
DTM	Date/Time Reference	Optional	20
Loop N1	Party Identification	Optional	100
N1	Party Identification	Mandatory	1
N2	Additional Name Information	Optional	2
N3	Party Location	Optional	2
N4	Geographic Location	Optional	1
G61	Contact	Optional	3
Loop R4	Port or Terminal	Optional	20
R4	Port or Terminal	Mandatory	1
DTM	Date/Time Reference	Optional	15
R2A	Route Information with Preference	Optional	25
R2	R22	Optional	13
K1	Remarks	Optional	12
L11	Business Instructions and Reference Number	Optional	99
H3	Special Handling Instructions	Optional	6
L5	Description, Marks and Numbers	Optional	999
X1	Export License	Optional	25
X2	Import License	Optional	5
Loop C8	Certifications and Clauses	Optional	20
C8	Certifications and Clauses	Mandatory	1
C8C	Certifications Clauses Continuation	Optional	5
SUP	Supplementary Information	Optional	10
Loop LX	Transaction Set Line Number	Optional	999
LX	Transaction Set Line Number	Mandatory	1
Y2	Container Details	Optional	10
Loop N7	Equipment Details	Optional	999
N7	Equipment Details	Mandatory	1
QTY	Quantity Information	Optional	1
L4	Measurement	Optional	1
N12	Equipment Environment	Optional	1
M7	Seal Numbers	Optional	5
M7A	Seal Number Replacement	Optional	100
W09	Equipment and Temperature	Optional	1
LH6	Hazardous Certification	Optional	6
Loop L1	Rate and Charges	Optional	20
L1	Rate and Charges	Mandatory	1
CUR	Currency	Optional	1
L7	Tariff Reference	Optional	1
X1	Export License	Optional	25
X2	Import License	Optional	5
N9	Extended Reference Information	Optional	100
Loop H1	Hazardous Material	Optional	10
H1	Hazardous Material	Mandatory	1
H2	Additional Hazardous Material Description	Optional	10
Loop LH1	Hazardous Identification Information	Optional	100
LH1	Hazardous Identification Information	Mandatory	1
LH2	Hazardous Classification Information	Optional	4
LH3	Hazardous Material Shipping Name Information	Optional	10
LFH	Free-form Hazardous Material Information	Optional	25
LEP	EPA Required Data	Optional	3
LH4	Canadian Dangerous Requirements	Optional	1
LHT	Transborder Hazardous Requirements	Optional	3
LHR	Hazardous Material Identifying Reference Numbers	Optional	5
PER	Administrative Communications Contact	Optional	5
L11	Business Instructions and Reference Number	Optional	100
K1	Remarks	Optional	10
Loop PO4	Item Physical Details	Optional	100
PO4	Item Physical Details	Mandatory	1
MEA	Measurements	Optional	5
MAN	Marks and Numbers Information	Optional	5
N9	Extended Reference Information	Optional	5
Loop L0	Line Item - Quantity and Weight	Optional	120
L0	Line Item - Quantity and Weight	Mandatory	1
MEA	Measurements	Optional	10
N9	Extended Reference Information	Optional	100
Loop PO4	Item Physical Details	Optional	100
PO4	Item Physical Details	Mandatory	1
MEA	Measurements	Optional	5
MAN	Marks and Numbers Information	Optional	5
N9	Extended Reference Information	Optional	5
QTY	Quantity Information	Optional	5
L4	Measurement	Optional	1
LH6	Hazardous Certification	Optional	6
Loop PAL	Pallet Type and Load Characteristics	Optional	3
PAL	Pallet Type and Load Characteristics	Mandatory	1
QTY	Quantity Information	Optional	1
Loop CTP	Pricing Information	Optional	1
CTP	Pricing Information	Mandatory	1
CUR	Currency	Optional	1
L5	Description, Marks and Numbers	Optional	999
LIN	Item Identification	Optional	1
L12	Alternate Lading Description	Optional	20
YNQ	Yes/No Question	Optional	10
Loop L1	Rate and Charges	Optional	20
L1	Rate and Charges	Mandatory	1
CUR	Currency	Optional	1
L7	Tariff Reference	Optional	1
Loop SAC	Service, Promotion, Allowance, or Charge Information	Optional	10
SAC	Service, Promotion, Allowance, or Charge Information	Mandatory	1
CUR	Currency	Optional	1
Loop L9	Charge Detail	Optional	10
L9	Charge Detail	Mandatory	1
CUR	Currency	Optional	1
X1	Export License	Optional	25
X2	Import License	Optional	5
Loop C8	Certifications and Clauses	Optional	20
C8	Certifications and Clauses	Mandatory	1
C8C	Certifications Clauses Continuation	Optional	5
SUP	Supplementary Information	Optional	10
Loop H1	Hazardous Material	Optional	10
H1	Hazardous Material	Mandatory	1
H2	Additional Hazardous Material Description	Optional	10
Loop LH1	Hazardous Identification Information	Optional	1000
LH1	Hazardous Identification Information	Mandatory	1
LH2	Hazardous Classification Information	Optional	4
LH3	Hazardous Material Shipping Name Information	Optional	10
LFH	Free-form Hazardous Material Information	Optional	25
LEP	EPA Required Data	Optional	3
LH4	Canadian Dangerous Requirements	Optional	1
LHT	Transborder Hazardous Requirements	Optional	3
LHR	Hazardous Material Identifying Reference Numbers	Optional	5
PER	Administrative Communications Contact	Optional	5
Loop N1	Party Identification	Optional	10
N1	Party Identification	Mandatory	1
N2	Additional Name Information	Optional	2
N3	Party Location	Optional	2
N4	Geographic Location	Optional	1
G61	Contact	Optional	3
Loop L3	Total Weight and Charges	Optional	1
L3	Total Weight and Charges	Mandatory	1
CUR	Currency	Optional	1
MEA	Measurements	Optional	5
PWK	Paperwork	Optional	50
SUP	Supplementary Information	Optional	999
Loop L1	Rate and Charges	Optional	20
L1	Rate and Charges	Mandatory	1
CUR	Currency	Optional	1
Loop TDS	Total Monetary Value Summary	Optional	1
TDS	Total Monetary Value Summary	Mandatory	1
CUR	Currency	Optional	1
Loop SAC	Service, Promotion, Allowance, or Charge Information	Optional	10
SAC	Service, Promotion, Allowance, or Charge Information	Mandatory	1
CUR	Currency	Optional	1
Loop L9	Charge Detail	Optional	10
L9	Charge Detail	Mandatory	1
CUR	Currency	Optional	1
ISS	Invoice Shipment Summary	Optional	5
V9	Event Detail	Optional	10
K1	Remarks	Optional	999
L11	Business Instructions and Reference Number	Optional	24
SE	Transaction Set Trailer	Optional	1