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ODS generally contain chlorine, fluorine, bromine, carbon, and hydrogen in varying proportions and are often described by the general term halocarbons. Chlorofluorocarbons (CFCs), carbon tetrachloride, and methyl chloroform are important human-produced ozone-depleting gases. Another important group of human-produced halocarbons are the halons, which contain carbon, bromine, fluorine, and (in some cases) chlorine. Most known substances with a significant ozone depleting potential are covered by the Montreal Protocol which aims to phase out ODS. The corresponding EU legislation is Regulation (EC) No 1005/2009 on substances that deplete the ozone layer (17) (see paragraph below).
Source: EUR-Lex (Cellar) · retrieved 2026-09-25 · Text as adopted (Official Journal); later amendments are not incorporated in this text.