In relation to certain industrial applications of PFAS, like in batteries, fuel cells and electrolysers, consideration is being given to derogations on any potential restrictions on their continued use, while a similar assessment is also expected in relation to medical devices and semiconductors, among other products.
In the meantime, the European Commission also adopted new measures under REACH, the EU’s chemicals regulatory framework, to restrict the use of undecafluorohexanoic acid (PFHxA) and PFHxA‑related substances. These are sub-groups of PFAS. The restriction will ban the sale and use of PFHxA in consumer textiles, such as rain jackets; food packaging, like pizza boxes; consumer mixtures, such as waterproofing sprays; cosmetics; and in some firefighting foam applications. These restrictions will start to apply from 10 October 2026. It does not affect other applications of PFHxA, for example in semiconductors, batteries or fuel cells for green hydrogen.
The European Environment Agency has also recently reported that the widespread presence of PFAS in European waters is undermining the objectives of the EU’s Water Framework Directive. The agency has highlighted the need to expand the list of PFAS substances monitored in surface and groundwater, with an ongoing proposal for this expansion since 2022, despite resistance from some EU countries.
Sandra Gröschel of Pinsent Masons said reforms to product liability rules, confirmed last month, could pave the way for an increase in PFAS-related litigation in the EU.
“The uncertain regulatory framework and the significant variance in the laws of member states as well as the growing public awareness around PFAS in the EU present not only compliance challenges but also significant litigation risks for businesses in Europe, particularly in the areas of product liability and mass claims,” Gröschel said. “As the EU moves toward stricter restrictions under REACH and other national regulations, companies may face allegations of environmental contamination, health impacts, and inadequate warnings regarding PFAS-containing products. This mirrors trends in the US, where PFAS-related lawsuits have surged, often involving claims of negligence, failure to warn, and breach of product safety laws.”
“In the EU, companies need to prepare for a potential wave of claims, particularly as collective redress mechanisms become more accessible across member states. Historical use of PFAS, even if compliant at the time, could expose businesses to liability if products are found to have contributed to contamination or health risks. The complexities of such claims, including establishing causation and dealing with cross-border implications, could lead to substantial financial and reputational damage,” she said.
“Companies operating in the EU need to prioritise due diligence in their supply chains, assess their historical and ongoing use of PFAS, and develop robust risk management strategies to mitigate both regulatory and liability exposure. A thorough understanding of uses and available alternatives as well as early preparation will be key to navigating this evolving legal landscape,” she said.
Katie Hancock added: “Following its exit from the EU, the UK’s chemical regulations have not kept pace with the EU, and there is no current proposal to ban or significantly restrict the use of PFAS in the UK. Prior to the 2024 change of government, UK regulatory authorities announced that they would be reviewing the use of PFAS in a number of products, but progress on this has been slow. The major change to UK chemical regulation in relation to PFAS is likely to lead to a restriction on the use of PFAS in firefighting foam. Notwithstanding this, PFAS are regularly mentioned in the UK press, and in 2024 residents of a town in Yorkshire indicated their intention to bring the UK’s first PFAS-related mass claim alleging contamination to ground and water by a local business.”
Fiona Cameron, also of Pinsent Masons, said: “The vast range of chemicals under the PFAS umbrella makes assessment, study, regulation and risk management incredibly difficult, not least because data and assessment of potential toxicity and risk varies considerably across the group and is not available for all PFAS. The science on PFAS is still evolving and care must be taken to ensure further restrictions are properly thought though to avoid unforeseen consequences.”