Four Substances Added to Domestic Substances List

Summary#

Order 2026-87-03-01 Amending the Domestic Substances List: SOR/2026-51 adds four chemical substances to the federal Domestic Substances List. The order was registered on March 18, 2026 and published in the Canada Gazette on April 8, 2026. It was signed by Julie Dabrusin, Minister of the Environment.

What it does#

• Adds these entries to Part 1 of the Domestic Substances List:
  • 68439-47-4
  • 147853-32-5
• Adds these entries to Part 3 of the Domestic Substances List:
  • 19637-5 — Phosphorane, pentahalo-, polymer with ammonium halide, P-carbomonocyclicoxy derivs.
  • 19813-1 — Heteromonocycle, polymer with α-alkenyl-ω-substituted poly(oxy-1,2-ethanediyl), peroxydisulfuric acid ([(HO)S(O)2]2O2) metal salt (1:2)-initiated hydrolyzed, metal salt
• Comes into force on the day it was registered (that is, March 18, 2026).

Who's affected#

• Manufacturers and importers who make or bring these specific substances into Canada.
• Companies that use these chemicals in industrial processes or in products downstream.
• Government regulators and any groups tracking chemical inventories and assessments.
• The order notes the government received information showing at least one of the substances had been manufactured or imported in Canada above the threshold that triggers reporting under the New Substances Notification Regulations (Chemicals and Polymers).

Why it matters#

• Being added to the Domestic Substances List means the government now treats these chemicals as existing in Canada.
• For businesses, that usually changes the paperwork: substances on the list are not treated as “new” for the purposes of new-substance notification rules.
• For the public, the change signals these substances are already in use or commerce in Canada and may be subject to ongoing tracking or assessment by health and environment authorities.
• The Canada Gazette entry refers to a separate Regulatory Impact Analysis Statement for more detail on potential costs or impacts.