EPA Finalizes Revision to VOC Definition, Excluding 2,3,3,3-tetrafluoropropene

Summary

The Environmental Protection Agency (EPA) is taking final action to revise the regulatory definition of volatile organic compounds (VOCs) to exclude 2,3,3,3-tetrafluoropropene (HFO-1234yf), a chemical used in air conditioning systems, from VOC regulations, which may impact emissions limits for certain federal and state regulations.