470 Railroad Clearance (004020)
This is the standard X12 004020 spec, with 3 loops and 23 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 470 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 470 files into TS470 objects. See ediFabric .NET.
ediFabric Native
Map version 004020 to the Native model with set_map, then parse 470 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 470 classes in Python, Java, Node.js, Go, Rust or C
ediFabric Native returns each 470 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 TS470. 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.
470 structure
Loops and segments of the standard 470, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| ST | Transaction Set Header | Optional | 1 |
| BGN | Beginning Segment | Mandatory | 1 |
| N9 | Reference Identification | Mandatory | 10 |
| F9 | Origin Station | Mandatory | 1 |
| D9 | Destination Station | Mandatory | 1 |
| PER | Administrative Communications Contact | Optional | 3 |
| H3 | Special Handling Instructions | Optional | 20 |
| R2 | Route Information | Optional | 13 |
| Loop LET | Load and Equipment Type | Optional | 150 |
| LET | Load and Equipment Type | Mandatory | 1 |
| MEA | Measurements | Mandatory | 4 |
| L4 | Measurement | Mandatory | 75 |
| N7 | Equipment Details | Optional | 1 |
| L10 | Weight | Optional | 1 |
| AMT | Monetary Amount | Optional | 1 |
| Loop LX | Assigned Number | Mandatory | 5 |
| LX | Assigned Number | Mandatory | 1 |
| NTE | Note/Special Instruction | Optional | 10 |
| L5 | Description, Marks and Numbers | Optional | 15 |
| Loop N1 | Name | Optional | 5 |
| N1 | Name | Mandatory | 1 |
| N2 | Additional Name Information | Optional | 1 |
| N3 | Address Information | Optional | 1 |
| N4 | Geographic Location | Optional | 1 |
| PER | Administrative Communications Contact | Optional | 1 |
| SE | Transaction Set Trailer | Optional | 1 |