For Now, OAR Relies On Narrow PFAS Definition To Review VOC Waivers

EPA’s air office is, for now, expressing support for a narrow definition of PFAS when it considers exempting chemicals from Clean Air Act rules governing volatile organic compounds (VOCs), saying it does not need a broader, unique definition because it scrutinizes a range of the substances’ risks before delisting them. While the narrow definition of per- and polyfluoroalkyl substances (PFAS), crafted by EPA’s Office of Pollution Prevention and Toxics (OPPT), is opposed by environmentalists because it precludes some substances from...