Non‑domestic Substances List Amendments

Summary#

The government published two orders under the Canadian Environmental Protection Act, 1999 that change the Non‑domestic Substances List. One order, Order 2021-66-01-02 Amending the Non-domestic Substances List, took effect on August 7, 2021; the other, Order 2021-87-09-02 Amending the Non-domestic Substances List, will come into force when Order 2021-87-09-01 Amending the Domestic Substances List comes into force.

What it does#

• Order 2021-66-01-02 Amending the Non-domestic Substances List
  • Removes the substance identified by CAS RN 56275-01-5 from Part I of the Non‑domestic Substances List.
  • Adds the following CAS RNs to Part I (listed in the order published): 15393-58-5, 23121-00-8, 31765-95-4, 67837-24-5, 334636-90-7, 909129-12-0, 926622-96-0, 1268344-03-1, 1430895-61-6, 1586018-77-0, 1803088-15-4, 1850357-57-1, 1883583-80-9, 2133415-24-2, 2252265-88-4, 2283318-90-9, 2354436-42-1.
  • Adds three named substances to Part II with their CAS RNs and short names:
    • 19489-7 — Fatty acids, plant-based oil, conjugated, maleated
    • 19501-9 — Alkanoic acid, trialkyl-, mixed polyesters with alkylalkanoic acid and poly(substituted alkyl)alkanepolyol
    • 19513-1 — Phosphinic acid, metal salt (3:1)
    • 19520-8 — (long polymer name listed in the Canada Gazette)
• Order 2021-87-09-02 Amending the Non-domestic Substances List
  • Removes these CAS RNs from Part I: 68441-88-3, 68442-58-0, 202606-02-8, 917104-27-9, 1609949-54-3.
  • This order will take effect when Order 2021-87-09-01 Amending the Domestic Substances List comes into force.

Who's affected#

• Companies that manufacture, import, or sell the listed chemicals in Canada.
• Chemical suppliers and downstream users who handle these substances.
• Environmental consultants and laboratories tracking or testing chemicals.
• Regulators and government staff who manage chemical inventories and assessments.

It is not always clear from the notice how many businesses or which specific products will be affected.

Why it matters#

• Being on or off the Non‑domestic Substances List changes how a substance is tracked under federal chemical programs.
• Businesses may see changes in reporting, assessment priority, or regulatory attention for the listed substances.
• The changes can affect trade, product formulation, and planning for testing or compliance work.
• If you use, sell, or import chemicals, you may want to check whether any entries match substances you handle and follow up with your regulatory or legal advisor.