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Ozone Depleting Substance ("ODS")

An Ozone Depleting Substance ("ODS") is an artificial compound and scheduled substance that has been proven to adversely affect the earth’s protective ozone layer. Typical ozone depleting substances include;

  • chlorofluorocarbons (CFCs)
  • halon
  • carbon tetrachloride (CCl4)
  • methyl chloroform (CH3CCl3)
  • hydrobromofluorocarbons (HBFCs)
  • hydrochlorofluorocarbons (HCFCs)
  • methyl bromide (CH3Br)
  • bromochloromethane (CH2BrCl)

The main uses of ozone depleting substances include:

  • HCFCs and halons in fire extinguishers;
  • CFCs and HCFCs in refrigerators and air conditioners;
  • CFCs and HCFCs in expanding foam;
  • CFCs and HCFCs as aerosol propellants;
  • methyl bromide for fumigation of soil, structures and goods to be imported or exported.


In preparing this definition, we have drawn from various sources including Legislation, Codes, Standards and industry information, research and knowledge.  Like the english language, these definitions may subtly change from time to time. As such these definitions are provided solely on the basis that users will be responsible for making their own assessment of the definition and and are advised to verify all relevant representations, statements and information.