Our organizations include community groups in areas affected by PFAS contamination, a national coalition of impacted communities, and local and national organizations advocating for strengthened protections against the risks posed by existing and new PFAS chemicals. The three premanufacture notices (“PMNs”) are merely the latest examples of new PFAS submitted for EPA approval without the studies and data required to evaluate their effects on human health and the environment and therefore without the information needed to support a determination that they are unlikely to pose an unreasonable risk.