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Rules and Regulations for safe transport of dangerous goods by different Modes. The United Nations (UN) Subcommittee of Experts on the Transport of Dangerous Goods develops recommended procedures on the safe transport of dangerous goods. 

International Associations and Local Authorities base on these to publish the regulations, to provide guidelines and/or guidance for different modes of transport:

  • Air: International Air Transport Association (IATA) Dangerous Goods Regulations (DGR)
  • Sea: International Maritime Organization (IMO) International Maritime Dangerous Goods (IMDG) Codes
  • Road: Agreement concerning the International Carriage of Dangerous Goods by Road (ADR) 
  • Rail: Appendix C of the Convention covering International Carriage by Rail (COTIF) – Regulations concerning the International Carriage of Dangerous Goods by Rail (RID)
  • Inland waterways: European Agreement concerning the International Carriage of Dangerous Goods by Inland Waterways (ADN)

More sources:

  • The International Civil Aviation Organization (ICAO) Model Regulations
  • The International Atomic Energy Agency (IAEA) IAEA Safety Standards
  • United Nations Economic Commission for Europe (UNECE): Dangerous Goods
  • Local Authorities or Governor Parties


What are Dangerous Goods?

Dangerous Goods are articles or substances that are capable of posing a HAZARD to Healthy, Safety, Property or the Environment, particularly if they are not handled properly.

Dangerous goods or hazardous materials can be solids, liquids or gases, or they can be pure chemicals, or mixtures of substances, manufactured products or individual articles. How can we do the classification or identification? They are classified according to their potential hazard, e.g., flammable, toxic, explosive, radioactive, etc.

Dangerous goods are defined as those goods which meet the criteria of nine hazard classes, with three packing groups whereas nine classes relate to the type of Hazard and three packing groups relate to the applicable degree of dangerous within the class. Some hazard classes are further subdivided into hazard divisions due to the wide scope of the class.

Transportation of hazardous materials

The United Nations (UN) has established a universal system for the classification of dangerous goods to facilitate different modes of transport (Air and Sea).


List of the 9 dangerous goods classes

Disclaimer: this information is provided for convenience only. Please consult International Associations and Local Authorities for more details and latest information.

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