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What Are Dangerous Goods?

Dangerous goods are articles or substances that are capable of posing significant risk to health, safety or property when transported by air. There are many everyday items which that seem harmless but can be a threat to the safety of passengers and crew when they are brought on an aircraft. Hence they are forbidden to be carried by passengers either in the aircraft cabin or their baggage. Examples of dangerous goods are fireworks, flares, camping gas, lighter fluid, bleach, pesticides, car batteries, mercury, paints, biological specimens etc. These dangerous goods have specific shipping and packing requirements which are detailed in the International Civil Aviation Organization (ICAO) Technical Instructions for the Safe Transportation of Dangerous Goods by Air (“ICAO Technical Instructions”).

Classification of Dangerous Goods

ICAO has classified dangerous goods into 9 classes as follows:

Classification of Dangerous Goods

Class 1


Class 2


Class 3

Flammable liquids

Class 4

Flammable solids; substances liable to spontaneous combustion; substances in which, contact with water, emits flammable gas

Class 5

Oxidising substances and organic peroxides

Class 6

Toxic and infectious substances

Class 7

Radioactive materials

Class 8

Corrosive substances

Class 9

Miscellaneous dangerous goods

In addition to dangerous goods, there are also restrictions on the volume of liquids, aerosols, gels and pastes that can be carried on international flights.

The air operator reserves the right to refuse to carry any of the above items on board its aircraft.

Batteries are flammable articles,and it is therefore important to take the necessary precautions when packing them :

  • Carry equipment and spare batteries in the cabin;
  • Protect all square batteries from short circuit;
  • Beware of counterfeit batteries and do not bring them on board the aircraft;
  • Do not carry batteries that have been recalled for safety reasons.

Contact Information

Please contact the following personnel for any queries relating to Dangerous Goods.

  • Mr Adrian Foo
    Aviation Safety Inspector (Dangerous Goods)
    Airworthiness/Flight Operations Division
    Email : adrian_foo@caas.gov.sg
    Tel : (65) 6541 3482
    Fax : (65) 6545 6519

  • Mr Vincent Koh
    Aviation Safety Inspector (Dangerous Goods)
    Airworthiness/Flight Operations Division
    Email : vincent_koh@caas.gov.sg
    Tel : (65) 6595 6777
    Fax : (65) 6595 6519

  • Ms Farah Izzah Bte Mohd Ibrahim
    Technical Support Officer
    Airworthiness/Flight Operations Division
    Email : farah_izzah_ibrahim@caas.gov.sg
    Tel : (65) 6541 3487
    Fax : (65) 6545 6519

More Information for Shippers / Freight Forwarders
Requirements of Carriage to be met by Shipper or Freight Forwarder
Advisory Circulars
Application for Dangerous Goods Permit
Application for Munitions of War (MOW) Permit
Declaration of Carriage

Last Updated: 22 May 15
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