312 Arrival Notice (Ocean) (006020)
This is the standard X12 006020 spec, with 11 loops and 59 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.
Use the 312 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 312 files into TS312 objects. See ediFabric .NET.
ediFabric Native
Map version 006020 to the Native model with set_map, then parse 312 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 312 classes in Python, Java, Node.js, Go, Rust or C
ediFabric Native returns each 312 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 TS312. 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.
312 structure
Loops and segments of the standard 312, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| ST | Transaction Set Header | Optional | 1 |
| B3 | Beginning Segment for Carrier's Invoice | Mandatory | 1 |
| Y6 | Authentication | Optional | 2 |
| Q3 | Arrival Details | Mandatory | 1 |
| C3 | Currency Identifier | Optional | 1 |
| G1 | Shipment Type Information | Optional | 1 |
| G2 | Beyond Routing | Optional | 1 |
| R2 | Route Information | Optional | 13 |
| N9 | Extended Reference Information | Optional | 15 |
| V1 | Vessel Identification | Mandatory | 2 |
| Loop N1 | Party Identification | Mandatory | 10 |
| N1 | Party Identification | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 1 |
| N3 | Party Location | Optional | 2 |
| N4 | Geographic Location | Optional | 1 |
| Loop R4 | Port or Terminal | Mandatory | 20 |
| R4 | Port or Terminal | Mandatory | 1 |
| DTM | Date/Time Reference | Optional | 15 |
| H3 | Special Handling Instructions | Optional | 6 |
| L5 | Description, Marks and Numbers | Optional | 1 |
| Loop LX | Transaction Set Line Number | Mandatory | 999 |
| LX | Transaction Set Line Number | Mandatory | 1 |
| Loop N7 | Equipment Details | Optional | 999 |
| N7 | Equipment Details | Mandatory | 1 |
| QTY | Quantity Information | Optional | 1 |
| N12 | Equipment Environment | Optional | 1 |
| M7 | Seal Numbers | Optional | 5 |
| W09 | Equipment and Temperature | Optional | 1 |
| L4 | Measurement | Optional | 1 |
| Loop H1 | Hazardous Material | Optional | 2 |
| 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 |
| Loop L0 | Line Item - Quantity and Weight | Optional | 120 |
| L0 | Line Item - Quantity and Weight | Mandatory | 1 |
| L5 | Description, Marks and Numbers | Optional | 999 |
| Loop L1 | Rate and Charges | Optional | 20 |
| L1 | Rate and Charges | Mandatory | 1 |
| C3 | Currency Identifier | Optional | 1 |
| L7 | Tariff Reference | Optional | 1 |
| Loop H1 | Hazardous Material | Optional | 2 |
| 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 |
| V9 | Event Detail | Optional | 10 |
| L3 | Total Weight and Charges | Mandatory | 1 |
| Loop L1 | Rate and Charges | Optional | 20 |
| L1 | Rate and Charges | Mandatory | 1 |
| C3 | Currency Identifier | Optional | 1 |
| K1 | Remarks | Optional | 999 |
| L11 | Business Instructions and Reference Number | Optional | 1 |
| SE | Transaction Set Trailer | Optional | 1 |