Nine Substances Added to Domestic Substances List

Summary#

Order 2022-87-02-01 Amending the Domestic Substances List: SOR/2022-51 adds nine substances to the Domestic Substances List under the Canadian Environmental Protection Act, 1999. The order took effect on March 8, 2022 and removes these substances from the pre‑market notification rules that apply to new chemicals.

What it does#

• Adds four substances (listed by CAS Registry Number) to Part 1 of the Domestic Substances List:
  • 67762-35-0
  • 1011707-96-2
  • 2291272-45-0
  • 2695520-47-7
• Adds five substances (listed by Confidential Accession Number / masked name) to Part 3 of the List:
  • 19579-7 — Isocyanic acid, polymethylenepolyphenylene ester, polymer with oxeheteromonocycle, 2‑hydroxyethyl methacrylate‑blocked
  • 19582-0 — Hexanedioic acid, cycloalkyl alkylhexyl ester
  • 19583-1 — Glycols, α,ω-, C2‑6, polymers with adipic acid, carbomonocyclepolycarboxylic acid, polymethyl ester, dodecanedioic acid, hydroxypolymethylalkyl hydroxypolymethylalkanoate, isophthalic acid, 1,1′‑methylenebis[4‑isocyanatobenzene], neopentyl glycol and terephthalic acid
  • 19584-2 — Glycols, α,ω-, C2‑6, polymers with adipic acid, dodecanedioic acid, hydroxypolymethylalkyl hydroxypolymethylalkanoate, isophthalic acid, 1,1′‑methylenebis[4‑isocyanatobenzene], neopentyl glycol and terephthalic acid
  • 19585-3 — Oxirane, 2‑phenyl‑, polymer with oxirane, ether with trisubstituted alkane, diblock
• As a result, these substances are no longer subject to the New Substances Notification Regulations (Chemicals and Polymers).

Who's affected#

• Manufacturers and importers of these nine substances in Canada.
• Businesses that use these chemicals in products or industrial processes (for example, formulators, plastics or coatings producers) may notice changes in paperwork or clearance steps.
• The order is administrative. The government says it creates no new regulatory requirements and does not add costs for small businesses.

Why it matters#

• Being on the Domestic Substances List means these chemicals are treated as existing substances in Canada. That typically makes it easier to bring them into the Canadian market because pre‑market notification and assessment under the new‑substances rules are no longer required.
• This can speed import, manufacture and use of these specific substances, which may affect supply chains and product formulation in affected industries.
• The addition is administrative, not an endorsement of safety; the ministers assessed information and determined the substances met the criteria for listing under CEPA.