Halocarbons are chemical substances composed of halogen (bromine, chlorine with or without fluorine) and carbon.        

They are used as refrigerants in air-conditioning and refrigeration systems, as extinguishing agents in fire-extinguishing systems, and as blowing agents in foam manufacturing. They are also used as solvents. Halocarbons pose two environmental problems: most contribute to thinning of the ozone layer and are greenhouse gases that contribute to climate change.

For more information on the Regulation Respecting Halocarbons, visit the Web site of the Ministère du Développement durable, de l’Environnement et de la Lutte contre les changements climatiques (MDDELCC).