Domestic Substances List Additions

Summary#

Order 2026-87-02-01 Amending the Domestic Substances List (SOR/2026-26) adds several chemical substances to Canada’s official list of existing substances. The Order was registered on February 16, 2026, and came into force that day.

What it does#

• Adds two substances to Part 1 of the Domestic Substances List:
  • 13325-14-9 (N)
  • 78197-98-5 (N‑P)
• Adds three substances to Part 3 of the Domestic Substances List with their CAS numbers and names:
  • 19810-8 — Siloxanes and silicones, alkyl Me, alkyl Me, alkyl Me, Me 2-phenylpropyl (N‑P)
  • 19811-9 — 2‑Propenoic acid, 2‑alkyl, polymer with alkyl 2‑propenoate and α-[[[alkyl-3-[[[2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethoxy]carbonyl]amino]carbomonocyclic]amino]carbonyl]-ω-(alkyloxy)poly(oxy-1,2-ethanediyl) (N‑P)
  • 19812-0 — 2‑Propenoic acid, 2‑methyl-, telomer with butyl 2‑propenoate, alkyl 3‑substituted propanoate and methyl 2‑methyl-2‑propenoate (N‑P)
• The Order was made under the Canadian Environmental Protection Act, 1999 and registers these substances as part of the domestic list used by federal regulators.

Who's affected#

• Chemical manufacturers and importers who make, sell, or bring the listed substances into Canada.
• Companies that use these substances to make products (formulators, industrial users).
• Regulators at Environment and Climate Change Canada and other federal bodies that track chemical inventories.
• It is unclear from the Order whether any new restrictions, monitoring, or reporting requirements apply; the Order itself only adds the substances to the List.

Why it matters#

• Being added to the Domestic Substances List usually means a substance is treated as an "existing" chemical in Canada. That can change what paperwork or pre-market notifications a business must file — often reducing the need for new-substance notifications.
• The Order signals that federal authorities have finished the assessment steps needed to list these substances. For details on health, environmental findings, or economic impacts, see the linked Regulatory Impact Analysis Statement that appears with SOR/2026-27.