Additions to Domestic Substances List

Summary#

Order 2021-87-07-01 Amending the Domestic Substances List: SOR/2021-157 adds a small group of chemicals to Canada's official list of existing substances. The change was registered on June 23, 2021 and published in the Canada Gazette on July 7, 2021, and it took effect on the registration day. The additions are made under the Canadian Environmental Protection Act, 1999.

What it does#

• Adds these entries to Part 1 of the Domestic Substances List:

  • 34813-63-3 N
  • 70700-21-9 N
  • 152698-67-4 N‑P
  • 1000006-46-1 N‑P

• Adds these entries to Part 3 of the Domestic Substances List (long polymer names as listed):

  • 19524-2 — Glycerides, C16-18 and C18-unsatd. mono- and di-, polymers with bisphenol A-epichlorohydrin polymer linoleate, diisopropanolamine, 2-hydroxyethyl methacrylate, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, Me methacrylate, 1,1′-methylenebis[4-isocyanatocyclohexane] and polyethylene glycol N-[5-[[[bis(2-hydroxyethyl)amino]carbonyl]amino]-2(or 4)-methylphenyl]carbamate Me ether, reaction products with dihydroheteromonocycledione
  • 19526-4 — 2-Propenoic acid, 2-methyl-, methyl ester, polymer with butyl 2-propenoate, ethenylbenzene, 2-substituted ethyl 2-propenoate and 2-propenoic acid, tert‑Bu peroxide-initiated
  • 19527-5 — 2-Propenoic acid, 2-methyl-, methyl ester, polymer with butyl 2-propenoate, ethenylbenzene, 2-substituted ethyl 2-propenoate and 2-propenoic acid, tert‑Bu benzenecarboperoxoate-initiated

• The Order states it was issued by the Minister of the Environment (signed by Jonathan Wilkinson) after the required assessment steps under the Canadian Environmental Protection Act, 1999 were completed.

Who's affected#

• Companies that make, import, sell or use the listed chemicals in Canada.
• Industrial users and product formulators that rely on those specific polymers or ingredients.
• Federal regulators and anyone tracking chemical inventories or assessments under the Canadian Environmental Protection Act, 1999.
• It is not clear from the Order whether communities, consumers, or specific downstream sectors will see immediate practical changes; effects depend on how the listed substances are used in products or industrial processes.

Why it matters#

• Being added to the Domestic Substances List means these chemicals are officially recorded as existing in Canada. That status can affect how they are tracked, reported, or assessed in future regulatory work under the Canadian Environmental Protection Act, 1999.
• For businesses, the change can alter regulatory obligations or the way authorities review those substances later.
• For the public, the listing improves transparency about what chemicals are recognized as present in Canada.
• The Order’s Regulatory Impact Analysis Statement is published alongside related items (see SOR/2021-159) for more detail on impacts.