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Abstract: This article provides overviews the status of PFAS regulation in the United States. Given the ubiquity of PFAS in commercial products, the expectation is that the United States’ regulation of PFAS and liability risks associated with PFAS will be of interest to a wide array of Japanese businesses, including specialty chemical companies, industrial manufacturers, oil and gas operations, and trading companies. Indeed, it is to be understood that many businesses, including those that have never knowingly used PFAS in their operations, may have a nexus to PFAS without knowing that they do. This article briefly describes PFAS, the types of products that include it, the recent wave of litigation involving PFAS contamination, which has involved settlements above $10 billion, and developments in federal and state regulation of these chemicals. This is followed by a brief discussion of specific scenarios in which these developments may affect Japanese corporations. The article ends with the recommendation that businesses that manufacture, distribute, use, or dispose of PFAS or products containing PFAS should stay abreast of these developments and develop proactive strategies to minimize their potential liability.

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On October 2023, the U.S. Environmental Protection Agency (EPA) published a final rule in the Federal Register modifying reporting requirements for per- and polyfluoroalkyl substances (PFAS) in the Toxics Release Inventory (TRI) under Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA). (See 88 Fed. Reg. 74,360 (October 31, 2023).) Specifically, EPA proposed that PFAS compounds on the TRI should be classified as “chemicals of special concern.” Such classification would eliminate the availability of the de minimis exemption to TRI reporting (also known as Section 313 reporting) for both manufacturers and suppliers. It would also require the use of a specific reporting form for the listed PFAS substances (a Form A instead of a Form R).

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On September 28, 2023, the U.S. Environmental Protection Agency (EPA) finalized the long-awaited one-time reporting rule for per- and polyfluoroalkyl substances (PFAS) that the Agency had proposed in June 2021 under Section 8(a)(7) of the Toxic Substances Control Act (TSCA). The finalization of this rule is one of the regulatory milestones set forth in the Biden EPA’s 2021 PFAS Strategic Roadmap. This rule will require businesses to provide the EPA information regarding their manufacture or importation of subject PFAS, as well as, most importantly, articles including covered PFAS, since January 1, 2011.

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Three notable settlements from June 2023 highlight the immense scale of liability for primary manufacturers of per- and polyfluoroalkyl substances (PFAS).

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On April 13, 2023, the Environmental Protection Agency (EPA) issued an Advanced Notice of Proposed Rulemaking (ANPRM) requesting input on seven potential future hazardous substance designations of per- and polyfluoroalkyl substances (PFAS) under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). (See Addressing PFAS in the Environment, 88 Fed. Reg. 22399, Apr. 13, 2023.)

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