Due to the varying characteristics and nature of dangerous goods, they are classified in to 9 classes and some classes are classified into divisions as following:

Class 1 – Explosives

Division 1.1 – Articles and substances having a mass explosion hazard

Division 1.2 – Articles and substances having a projection hazard but not amass explosion hazard

Division 1.3 – Articles and substances having a fire hazard, a minor blast hazard and but not amass explosion hazard, a minor projection hazard but not amass explosion hazard

Division 1.4 – Articles and substances presenting on signification hazard

Division 1.5 – Very insensitive substances having a mass explosion hazard

Division 1.6 – Extremely insensitive articles which do not have a mass explosion hazard

Class 2 – Gasses

Division 2.1 – Flammable gas

Division 2.2 – Non flammable, non toxic gas

Division 2.3 – Toxic gas

Class 3 – Flammable liquid

Class 4 – Flammable solid; Substances liable to spontaneous combustion; Substances which in contact with water emit flammable

Division 4.1 – Flammable solid

Division 4.2 – Substances to spontaneous combustion

Division 4.3 – Substances which in contact with water emit flammable

Class 5 – Oxidizing substances and organic peroxide

Division 5.1 – Oxidizing substances

Division 5.2 – Organic peroxide

Class 6 – Toxic and infectious substances

Division 6.1 – Toxic

Division 6.2 – Infectious substances

Class 7 – Radioactive materials

Class 8 – Corrosives

         Class 9 – Miscellaneous dangerous goods