Betsy Southerland (EPN member and former Director, Office of Science & Technology, EPA Office of Water) was quoted and EPN was cited in this article regarding EPA’s ability to regulate per- and polyfluoroalkyl substances as a class. A recent op-ed written by Betsy and EPN members Linda Birnbaum (former Director, National Institute of Environmental Health Sciences and former EPA scientist) and Bob Sussman (former EPA Deputy Administrator and Senior Policy Counsel to the EPA Administrator) supporting this approach was referred to extensively in the article.