1. The 9 Classes of Dangerous Goods Under the IMDG Code
Class | Category | Common Goods | UN Number Range |
Class 1 | Explosives | Fireworks, ammunition | 0001–0190 |
Class 2 | Gases | Lighters, compressed gases, refrigerants | 1001–1079 |
Class 3 | Flammable Liquids | Paints, solvents, alcohol | 1089–1300 |
Class 4 | Flammable Solids | Sulfur, activated carbon, matches | 1301–1360 |
Class 5 | Oxidizing Substances | Hydrogen peroxide, bleaching agents | 1400–1490 |
Class 6 | Toxic Substances | Pesticides, chemical intermediates | 1541–1650 |
Class 7 | Radioactive Material | Medical radiation sources | 2900–2919 |
Class 8 | Corrosives | Sulfuric acid, sodium hydroxide | 1730–1830 |
Class 9 | Miscellaneous | Lithium batteries, magnets, life-saving equipment | 2800–2900 |
2. Dangerous Goods Packing Requirements
Requirement | Standard |
Packaging Requirements | Must pass UN performance tests and bear UN markings |
Stuffing Requirements | In accordance with segregation requirements specified in the IMDG Code |
Container Marking | Dangerous goods placards + UN number on all four sides |
Documentation Requirements | MSDS + Dangerous Goods Packaging Certificate + Dangerous Goods Declaration |
Stuffing Photographs | Photographic evidence at three stages: pre-stuffing, during stuffing, post-stuffing |
3. Dangerous Goods Shipping Procedure
1. Submit MSDS → Shipping line review and approval
2. Upon approval, book space (via dedicated DG booking channel)
3. Prepare Dangerous Goods Packaging Certificate + Dangerous Goods Declaration
4. Stuff container → Apply placards → Take photographs
5. Submit dangerous goods declaration to customs
6. Load onto vessel at designated terminal
📖 Further Reading: International Shipping Operations Manual, Part 09: Special Cargo Shipping—Key operational points for dangerous goods and special cargoData Note: Dangerous goods classifications are cited from the latest edition of the IMDG Code. Data current as of July 2026.
