Seven Substances Added to Domestic List

Summary#

Order 2022-87-04-01 Amending the Domestic Substances List adds seven substances to the Domestic Substances List under the Canadian Environmental Protection Act, 1999. The change took effect on June 8, 2022 and means these substances are no longer subject to the government’s new-substance notification rules for chemicals and polymers.

What it does#

• Adds two substances (by CAS number) to Part 1 of the Domestic Substances List: 171542-56-6 and 1684433-74-6.
• Adds five substances (by masked names and Confidential Accession Numbers) to Part 3 of the Domestic Substances List:
  • 19592-0 — 2-Propenoic acid, 2-methyl-, aklyl ester, polymer with alkene, alkene and alkyl methylalkenoate
  • 19593-1 — Carbomonocyclicaldehyde, polymer with formaldehyde, alkylphenol and ethylene oxide
  • 19594-2 — Plant-based oil, polymers with glycerol, pentaerythritol and phthalic anhydride
  • 19595-3 — Alkanediol, polymer with 1,6-diisocyanato-trialkylhexane, 1,6-diisocyanato-trialkylhexane and α-hydro-ω-hydroxypoly(oxy-1,2-ethanediyl), alkyl alcohols-blocked
  • 19597-5 — 2-Butenedioic acid (2Z)-, alkyl ester, reaction products with Bu acrylate- Bu methacrylate-N-(1,1-dimethyl-3-oxobutyl)-2-propenamide-2-ethylhexylacrylate-Me methacrylate-methacrylic acid polymer
• Because these substances are now on the Domestic Substances List, they are no longer covered by the New Substances Notification Regulations (Chemicals and Polymers) for notification and assessment.

Who's affected#

• Chemical manufacturers and importers who make, bring in, or supply any of these seven substances in Canada.
• Downstream users (e.g., formulators, product manufacturers) who use these substances in goods could notice easier access or fewer pre-market paperwork requirements.
• The general public and most consumers are unlikely to see direct changes from this administrative update.
• The Gazette entry does not name the specific companies involved, so it is unclear which firms or products will be directly affected.

Why it matters#

• For businesses: removing these substances from the new-substance notification rules typically reduces paperwork and can speed up access to the Canadian market.
• For regulators and the public: the addition is administrative — it does not mean the government endorses the substances or that other laws and safety rules no longer apply.
• For people concerned about chemical safety: being added to the list only means the substances have already been imported or manufactured in certain amounts and have completed the initial federal assessment process described under CEPA.