Controlled substances: ozone-depleting substances

Under the Ozone-depleting Substances and Halocarbon Alternatives Regulations, controlled substances are listed on this web page.

Previously, under the Ozone-depleting Substances Regulations, 1998, (now repealed) controlled substances were:

Group 1:  Tetrachloromethane (carbon tetrachloride)

Group 2:  1,1,1-trichloroethane (Methyl chloroform), not including 1,1,2-trichloroethane

Group 3:

• Trichlorofluoromethane (CFC-11)
• Dichlorodifluoromethane (CFC-12)
• Trichlorotrifluoroethane (CFC-113)
• Dichlorotetrafluoroethane (CFC-114)
• Chloropentafluoroethane (CFC-115)

Group 4:  Chlorofluorocarbons other than those set out in group 3

Group 5:

• Bromochlorodifluoromethane (Halon 1211)
• Bromotrifluoromethane (Halon 1301)
• Dibromotetrafluoroethane (Halon 2402)

Group 6:  Bromofluorocarbons other than those set out in group 5

Group 7:  Hydrobromofluorocarbons (HBFCs)

Group 8:  Methyl Bromide

Group 9:  Hydrochlorofluorocarbons (HCFCs)