![]() ![]() MVAC systems are one end-use within the refrigeration and air conditioning sector. Significant New Alternatives Policy (SNAP) ProgramĮPA’s Significant New Alternatives Policy (SNAP) program reviews substitutes within a comparative risk framework in a variety of industrial sectors that historically used ozone-depleting substances. As a result of a July 2015 rulemaking, by model year 2021, the MVAC systems in newly manufactured light-duty vehicles in the United States will no longer use HFC-134a. Like the ozone-depleting substances they replace, most HFCs are potent greenhouse gases with very high global warming potentials (GWPs). In 2012, automobile manufacturers began the transition to new, climate-friendly alternative refrigerants. ![]() HFCs are intentionally-made fluorinated greenhouse gases used in the same applications where ozone-depleting substances have been used, including motor vehicle air conditioning. Since 1994, the most common refrigerant used in MVAC systems has been hydrofluorocarbon (HFC)-134a. ![]() Use of the ozone-depleting refrigerant, chlorofluorocarbon (CFC)-12, in new motor vehicle air conditioning (MVAC) systems ended in the mid-1990s in the United States. Brochure on New Climate-Friendly MVAC Refrigerants ![]()
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