Commercial Vehicle Operators’ Safety Manual


Classes of Dangerous Goods


Class 1: Explosives

  • Explosives, as included in the Explosives Act

Class 2: Gases

  • Compressed, deeply refrigerated, liquefied or dissolved under pressure

Class 3: Flammable Liquids

  • A liquid which has a closed-cup flash point not greater than 60oC.

Class 4: Flammable Solids

  • Flammable solids, meaning substances liable to spontaneous combustion, and substances that emit flammable gases upon contact with water

Class 5: Oxidizing Substances and Organic Peroxides

  • Substance which causes or contributes to the combustion of other material by yielding oxygen or other oxidizing substances or organic compounds which are strong oxidizing agenst and may be liable to explosive decomposition, be sensitive to heat, shock or friction or react dangerously with other dangerous goods

Class 6: Toxic and Infectious Substances

  • A solid or liquid that is toxic through inhalation, by skin contact or by ingestion or Micro-organisms that are infectious or that are reasonably believed to be infectious to humans or animals.

Class 7: Radioactive Materials

  • Nuclear substances, within the meaning of the Nuclear Safety and Control Act, which are radioactive

Class 8: Corrosives

  • A substance that causes destruction of skin or corrodes steel or non-clad aluminum.

Class 9: Miscellaneous Products, Substances or Organisms

  • Miscellaneous products, substances or organisms considered by the Governor-in-Council to be dangerous to life, health, property or the environment when handled, offered for transport or transported
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