EU and Canada tighten rules on PFAS and related persistent chemicals

The European Union is advancing a new regulatory framework for PM T/vPv M substances—chemicals that are persistent, mobile and toxic—building on its PFAS controls. The European Chemicals Agency (ECHA) plans to embed identification criteria for these substances in REACH, with a focus on preventing contamination of groundwater and drinking‑water sources. Representative compounds include MTBE, N‑MP, DMSO, 1,4‑dioxane and others used widely in industry, which could affect sectors such as valve manufacturing and chemical‑plant equipment.

In parallel, Canada’s Prohibition of Certain Toxic Substances Regulations took effect on 30 June 2026, and recent Ontario court rulings have imposed multi‑million‑dollar punitive damages on entities that delayed public disclosure of PFAS‑contaminated groundwater. The decisions underscore a legal shift: municipalities must promptly inform residents of potential drinking‑water contamination or face severe penalties, signalling a new era of liability for water utilities and polluters.