IMO IMDG Dangerous Goods Classification Codes

Version 1.0.0 • Published May 07, 2026 00:00 UTC • by International Maritime Organization (IMO), RefPack

Dangerous goods classification codes and descriptions from the International Maritime Dangerous Goods (IMDG) Code published by the International Maritime Organization (IMO). Covers all hazardous material classes and divisions including explosives, flammables, corrosives, and marine pollutants.

Download v1.0.0 (.zip)

IMO IMDG Dangerous Goods Classification Codes

Overview

Dataset Structure

Field	Type	Required
`un class`	integer	Yes
`dangerous goods`	string	Yes
`division`	number	Yes
`classification`	string	Yes

Sample Entries

un class	dangerous goods	division	classification
1	Explosives	1.1	Substances and articles which have a mas
1	Explosives	1.2	Substances and articles which have a pro
1	Explosives	1.3	Substances and articles which have a fir
1	Explosives	1.4	Substances and articles which present no
1	Explosives	1.5	Very insensitive substances which have a

Usage Scenarios

Maritime logistics and shipping compliance
Hazardous materials classification and labeling systems
Supply chain safety and regulatory compliance applications
Emergency response and incident management systems

Data Integrity

The division field serves as the unique identifier.
Required fields: un class, dangerous goods, division, classification
Additional properties are disallowed.

Metadata & Versioning

Dataset ID: imo_imdg_classification_codes
Version: 1.0.0
Created (UTC): 2026-05-07T00:00:00Z
Title: IMO IMDG Dangerous Goods Classification Codes
Authors: International Maritime Organization (IMO), RefPack
License: Public Domain
Tags: imo, imdg, dangerous goods, hazmat, maritime, safety, compliance, classification, cat006

Field Name	Field Type	Sample Values
classification	string	Substances and articles which have a mass explosion hazard Substances and articles which have a projection hazard but not a mass explosion hazard Substances and articles which have a fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard
dangerous goods	string	Explosives Gases Flammable Liquid
division	number	1.1 1.2 1.3
un class	number	1 2 3

Field Name	Type	Description	Constraints
classification *	`string`
dangerous goods *	`string`
division *	`number`
un class *	`integer`

Full `data.changelog.json` Content (v1.0.0)

[
  {
    "version": "1.0.0",
    "date": "2026-05-07",
    "description": "Initial release"
  }
]

Full `data.schema.json` Content (v1.0.0)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "IMO IMDG Dangerous Goods Classification Codes Schema",
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "un class": {
        "type": "integer",
        "description": ""
      },
      "dangerous goods": {
        "type": "string",
        "description": ""
      },
      "division": {
        "type": "number",
        "description": ""
      },
      "classification": {
        "type": "string",
        "description": ""
      }
    },
    "required": [
      "un class",
      "dangerous goods",
      "division",
      "classification"
    ],
    "additionalProperties": false
  }
}

IMO IMDG Dangerous Goods Classification Codes

IMO IMDG Dangerous Goods Classification Codes

Overview

Dataset Structure

Sample Entries

Usage Scenarios

Data Integrity

Metadata & Versioning

Data Preview (`data.json` - First 3 Records of v1.0.0)

IMO IMDG Dangerous Goods Classification Codes Schema (v1.0.0)

Suggested Key Fields:

Changelog for Package v1.0.0

Version 1.0.0

Available Versions for imo_imdg_classification_codes

Version 1.0.0 Current

Report an Issue

Reporting Guidelines

IMO IMDG Dangerous Goods Classification Codes

IMO IMDG Dangerous Goods Classification Codes

Overview

Dataset Structure

Sample Entries

Usage Scenarios

Data Integrity

Metadata & Versioning

Data Preview (data.json - First 3 Records of v1.0.0)

IMO IMDG Dangerous Goods Classification Codes Schema (v1.0.0)

Suggested Key Fields:

Changelog for Package v1.0.0

Version 1.0.0

Available Versions for imo_imdg_classification_codes

Version 1.0.0 Current

Report an Issue

Reporting Guidelines

Full data.json Content (v1.0.0)

Full data.changelog.json Content (v1.0.0)

Full data.schema.json Content (v1.0.0)

Data Preview (`data.json` - First 3 Records of v1.0.0)

Full `data.json` Content (v1.0.0)

Full `data.changelog.json` Content (v1.0.0)

Full `data.schema.json` Content (v1.0.0)