Class 1: Explosives
        Division 1.1: substances and articles which have a mass explosion hazard
        Division 1.2: substances and articles which have a projection hazard but not a mass explosion hazard
        Division 1.3: substances and articles which have a fire hazard and either a minor blast hazard or a minor  projection hazard or both,
                            but not a mass explosion hazard
        Division 1.4: substances and articles which present no significant hazard
        Division 1.5: very insensitive substances which have a mass explosion hazard
        Division 1.6: extremely insensitive articles which do not have a mass explosion hazard
 
Class 2: Gases
Class 2.1: flammable gases
Class 2.2: non-flammable, non-toxic gases
Class 2.3: toxic gases
 
Class 3: Flammable liquids
 
Class 4: Flammable solids; substances liable to spontaneous combustion; substances which, in contact with water, emit flammable gases
Class 4.1: flammable solids, self-reactive substances and desensitized explosives
Class 4.2: substances liable to spontaneous combustion
Class 4.3: substances which, in contact with water, emit flammable gases
 
Class 5: Oxidizing substances and organic peroxides
Class 5.1: oxidizing substances
Class 5.2: organic peroxides
 
Class 6: Toxic and infectious substances
Class 6.1: toxic substances
Class 6.2: infectious substances
 
Class 7: Radioactive material
 
Class 8: Corrosive substances
 
Class 9: Miscellaneous dangerous substances and articles