Federal · C-15.31 was amendedIn force June 30, 2026 · detected October 1, 2026

Canada's toxic substances lists expanded and clarified with new chemicals and more precise identifiers

Canadian Environmental Protection Act, 1999

Plain-language summary · AI-assisted · not legal advice

The federal government has updated Schedule 3 of the Canadian Environmental Protection Act, 1999, which lists prohibited, restricted, and controlled substances. Several existing entries have been sharpened by adding Chemical Abstracts Service (CAS) numbers and named isomers or salts — for example, endosulfan, phosphamidon, DNOC, and perfluorooctane sulfonate entries now explicitly list their component forms. New substances have been added to the 'Restricted' list, including long-chain perfluorocarboxylic acids (PFCAs), ferbam, and a dodeachloro compound. New entries on the 'Prohibited' list include hexabromocyclododecane (HBCD), perfluorooctanoic acid (PFOA) and related compounds, phorate, and polybrominated diphenyl ethers (PBDEs). Phorate has been moved from the Restricted list to the Prohibited list. Businesses that manufacture, import, use, or sell products containing any of these substances — including flame retardants, pesticides, and per- and polyfluoroalkyl substances — should review whether their products or operations are affected by the expanded or reclassified entries.

Who this affects: chemical manufacturers and importers · pesticide and agrochemical producers · industrial product formulators · environmental compliance officers · companies using flame retardants or PFAS-containing materials

Source of truth: C-15.31 on the official source

Legislative text © King's Printer for Ontario. This page is not an official version of the law and is not legal advice. Verify against the official source before acting.

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