The gases listed in Part 2 of Annex V of Regulation (EU) 2018/1999 of the European Parliament and of the Council. These include Carbon dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O), Sulphur hexafluoride (SF6), Nitrogen trifluoride (NF3), Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs).