Non‑domestic Substances List amended

Summary#

The federal government published two orders under the Canadian Environmental Protection Act, 1999 that change the Non‑domestic Substances List. One order (signed by Julie Dabrusin) removes a few CAS numbers and adds a long list of chemicals to the list; it takes effect on the day the Canada Gazette issue was published (September 20, 2025). A second order removes 25986-77-0 from the Non‑domestic Substances List because it was added to the Domestic Substances List; that change takes effect when the related Domestic List order comes into force.

What it does#

• Amends the Non‑domestic Substances List by deleting three CAS numbers: 85711-46-2, 122055-81-6, and 2768948-95-2.
• Adds a very large set of specific chemicals (many CAS numbers are listed in the order) to Part I of the Non‑domestic Substances List.
• Adds two named entries to Part II of the Non‑domestic Substances List: 19787-5 and 19788-6, with short chemical descriptions in the order.
• Replaces the masked name for 19637-5 in Part II with a full description.
• Deletes 25986-77-0 from the Non‑domestic Substances List because it has been added to the Domestic Substances List; this deletion comes into force when Order 2025-87-09-01 Amending the Domestic Substances List comes into force (date not specified in this notice).

Who's affected#

• Companies that make, import or use chemicals in Canada — especially manufacturers, importers, distributors and downstream users of the specific substances listed.
• Environmental consultants, testing labs and other professionals who track chemical inventories and regulatory lists.
• Government regulators and anyone monitoring which chemicals are considered “domestic” versus “non‑domestic” under federal lists.

It is hard for a general reader to tell which industries will notice the change because the Gazette entry mostly lists chemicals by CAS numbers, not common trade names or uses.

Why it matters#

• Being on the Non‑domestic Substances List or the Domestic Substances List affects how chemicals are tracked and reviewed under federal chemical rules. Moving a substance between lists can change which regulatory processes apply and who must report or provide information to the government.
• Businesses that handle any of the listed CAS numbers may need to check the orders to see whether their reporting or compliance obligations change.
• The notice is an official record of these inventory changes and sets the timing for when those changes take effect. If you think you use any of the listed chemicals but aren’t sure which ones they are, you may need to compare CAS numbers with your product data sheets or ask a regulatory specialist.