Clean Air

Hydrofluorocarbons are among the most potent greenhouse gases, with a global warming potential hundreds to thousands times more than carbon dioxide in a shorter time span. HFCs are commonly used in refrigeration, air conditioning, building insulation, and aerosols.

EPA regulates HAPs, including benzene, metals, and other pollutants that are known to cause cancer and other serious health effects. A facility is considered a major source if it has the potential to emit 10 tons per year of any one HAP or 25 tons per year of any combination of HAPs.

The Biden administration finalized amendments to the Petroleum Refinery Sector Rule. Industry groups and environmental NGOs challenged the amendments, and the case is being litigated in the D.C. Circuit.