IMDG Code: What It Is and Why It’s Vital for Dangerous Goods

Did you know that about 98% of the global merchant fleet operates under the IMDG code? The full form of IMDG is International Maritime Dangerous Goods. It is the essential rulebook for international shipping, especially for handling hazardous cargo. The International Maritime Organisation (IMO) sets the guidelines under the IMDG code. In this article, today we will look into what IMDG codes are, the purpose of these codes, their structure and how they can help safeguard people, property and the environment.
What is the IMDG Code?
The IMDG (International Maritime Dangerous Goods) codes are rules and guidelines developed by the IMO to ensure that safe maritime transport can happen. These rules are for hazardous materials. It was initially adopted in 1965 as a recommendation. However, the IMDG code became mandatory in January 2004 per the International Convention for the Safety of Life at Sea (SOLAS).
Purpose of the IMDG Code in International Trade.
The IMDG code has been strategically curated to make safe sea transportation possible. Let us look at the prime objectives of the IMDG code:
- The IMDG code ensures the safety of people on board, such as crew members and port personnel.
- One of the primary objectives of the IMDG code is to ensure that the environmental risk associated with hazardous cargo during international trade can be mitigated.
- As the IMDG code is standard across all countries, it can help streamline the global movement of dangerous goods.
Key Components of the IMDG Code
The IMDG code is primarily segregated into two volumes. There is also an additional section named Supplement. The structure of the IMDG code contents is explained below:
- Volume 1: Volume 1 contains general provisions, training requirements, definitions, safety measures, protocol, classification, packing, and labelling guidelines. It also covers safety protocols for the safe loading and unloading of goods. Outlines confinement procedures concerning the documentation.
- Volume 2: It features the Dangerous Goods List (DGL), which contains details on individual substances. It also includes the UN number, shipping names, and packing instructions. It also contains Appendix A, which lists general shipping names for dangerous goods commonly shipped, and Appendix B, which has a glossary of terms.
- Supplement: The supplement offers additional guidance, emergency response, and procedures for ships carrying various goods (EmS Guide) along with the Medical First Aid Guide (MFAG). It also covers the guidelines for the safe use of pesticides on ships.
Also check – Difference Between Packaging and Labelling
Classification of Dangerous Goods As Per IMDG Codes
The IMDG codes are categorised into nine different classes, depending on the inherent hazards they pose.
1. Explosives
The substances that can cause explosive reactions. Other hazards due to explosives can lead to fire or the projection of fragments. Some examples include dynamite, ammunition, or fireworks.
2. Gases
Compressed, liquefied or dissolved gases. It is subdivided into flammable gases, flammable inert gases, and toxic gases.
The hazards that gases can cause include explosion, fire, and poisoning. Some examples include propane, chlorine, and oxygen.
3. Flammable Liquids
These are liquids that are easily flammable and can lead to fires or explosions. The subdivision under classification includes flammable liquids with low flashpoints, flammable liquids with medium flashpoints, and flammable liquids with high flashpoints.
Examples include gasoline, alcohol, and ethanol.
4. Flammable Solids
Solid materials that can easily catch fire and are highly flammable are called flammable solids. The subdivisions under this classification include flammable solids susceptible to self-heating, substances that can ignite instantaneously and those that can emit flammable gases when they come into contact with water.
Flammable solids can pose the risk of fire or explosion. Examples of flammable solids include magnesium, matches, or sulphur.
5. Oxidising Substances and Organic Peroxides
Oxidising substances are materials with a high chance of releasing oxygen, which can cause or increase combustion. Two subdivisions are the oxidising substances and organic peroxide under this classification.
These substances pose risks such as fires and exothermic reactions. Examples of such materials include hydrogen peroxide and sodium chloride.
6. Toxic and Infectious Substances
These materials harm human health, either via inhalation, ingestion or contact with the skin. The two subdivisions under this classification include toxic substances and infectious substances.
These substances pose risks such as infections and poisoning. Examples include cyanide, medical waste, and pesticides.
7. Radioactive Materials
These are substances which emit ionising radiation. The subdivision under this classification includes radioactive material of limited activity and radioactive material of high activity. A few examples include medical isotopes and uranium.
8. Corrosive Substances.
These are materials that cause severe damage to the living tissue. The subdivisions include substances corrosive to skin, substances corrosive to metals, and corrosive substances that attack other materials.
It poses risks such as eye damage, burns, etc. A few examples include acids and alkalis.
9. Miscellaneous Dangerous Goods
These are materials that can present different hazards which are not covered in the above classification.
Some examples of this classification include lithium batteries or substances that give off heat.
Significance of the IMDG Code
The IMDG code has been structured to ensure that human life, goods on board and the environment are all safe while the transportation of dangerous goods occurs across countries. Here’s how the IMDG code is significant:
- When shipping firms comply with the IMDG codes by IMO, they can significantly mitigate the risk of accidents, protecting the crew members’ lives and safeguarding the vessels.
- IMDG codes’ primary provision is to prevent marine pollution, ensuring that the transportation of dangerous materials and hazardous substances happens in a controlled way.
- Since compliance with the IMDG code is mandatory as per international law, failure to comply with it can also result in severe penalties and bans.
- Since regulations under the IMDG code are standardised, it can help streamline the international transportation of goods, facilitating global trade and commerce.
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Conclusion
The IMDG code has a very important role in the safe and seamless transportation of hazardous goods via sea. The guidelines mentioned under the IMDG code are key to protecting human life, protecting vessels, preserving the marine environment and also facilitating global trade and commerce. Every business involved in the maritime transport of dangerous goods must comply with the IMDG code without fail, as it is more than just a legal obligation. It is a commitment towards safety for humans as well as the environment.
FAQs About IMDG Code
What are the results of not complying with the IMDG code?
Compliance with the IMDG code is mandatory, and hence, non-compliance can lead to penalties, including monetary fines, detention of vessels and even, in some cases, bans from ports.
How often is the IMDG code updated?
IMDG code is updated biennially to incorporate advanced safety measures and also to address if there are any emerging risks.
Where can I access the latest edition of the IMDG code?
The IMDG code can be obtained from the IMO’s official website. You can also get it from other authorised distributors.
Who needs to be trained as per the IMDG code for transportation via sea?
All the people involved with handling, packaging, documentation, and transporting hazardous substances by sea need to undergo appropriate training for handling such substances as per the IMDG code.