What Is IMDG Code? Maritime Dangerous Goods Guide
The IMDG Code governs the safe transport of dangerous goods by sea, published by the International Maritime Organization (IMO). It covers classification, packaging, labeling, container stowage, and emergency procedures.
What Is IMDG Code?
The IMDG Code (International Maritime Dangerous Goods Code) is the international standard governing the safe transport of hazardous materials by sea. Published by the IMO (International Maritime Organization) and mandated under the SOLAS Convention, it applies to all commercial vessels worldwide. Updated every two years.
IMDG uses the same 9 hazard classes as ADR (road) but with sea-specific packaging, labeling, container stowage, and segregation rules.
IMDG Hazard Classes
Same 9 classes as ADR: (1) Explosives, (2) Gases, (3) Flammable liquids, (4) Flammable solids, (5) Oxidizers, (6) Toxic, (7) Radioactive, (8) Corrosives, (9) Miscellaneous (lithium batteries, dry ice).
Key Requirements
- UN packaging: Certified and tested containers
- Labeling: Hazard labels on packages
- Container placards: Hazard signs on all four container sides
- Dangerous goods declaration: Shipper's written certification
- Container packing certificate: Confirms safe loading
- EmS (Emergency Schedule): Emergency response procedures
IMDG and LCL Shipping
LCL (shared container) generally does not accept IMDG cargo because mixing different shippers' goods with hazardous materials creates compatibility risks at the CFS. Dangerous goods should be shipped FCL (full container) with proper segregation.
Frequently Asked Questions
IMDG vs ADR?
IMDG for sea, ADR for road. Same 9 classes, different mode-specific rules.
Can dangerous goods go LCL?
Generally no. FCL with proper segregation required.
Lithium batteries under IMDG?
Class 9. In-device batteries often qualify for exempt quantity. Bulk batteries require full compliance.
Who files the dangerous goods declaration?
The shipper. They certify correct classification, packaging, and labeling. False declarations carry legal liability.
References
- IMO IMDG Code
- SOLAS Convention
- Maritime Safety Committee
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