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The U.S. Environmental Protection Agency’s (EPA’s) April 2026 draft Sixth Contaminant Candidate List (CCL 6) places microplastics on the federal regulatory radar for the first time, increasing risk of more extensive compliance costs and potential litigation. Notably for consumer product companies, as seen with per- and polyfluoroalkyl substances (PFAS), the EPA has taken more of a “polluter pays” lens to assess contributors to drinking water contamination throughout the supply chain, and consumer products have already been documented contributors to microplastic loads in the environment. At this early stage of federal regulation, with some data gaps yet to be filled, this initial step may create concerns for stakeholders across the consumer products supply chain.

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