The Department of Defense’s (DoD) recently released “Report on Critical Per- and Polyfluoroalkyl Substance (PFAS) Uses” documents the critical role PFAS chemistries serve in the defense of our nation. PFAS are a diverse universe of chemistries critical to a broad range of products, including renewable energy, electronics, healthcare technology, pharmaceuticals, and air and ground transportation. Recently, policymakers at the state and federal levels have considered or adopted measures to ban, severely restrict, or put other enormous regulatory burdens on this entire class of chemistry.