New Substances Added to Domestic List

Summary#

This is Order 2025-87-01-01 Amending the Domestic Substances List (SOR/2024-251). It adds a set of chemicals to the Domestic Substances List under the Canadian Environmental Protection Act, 1999 and came into force on the day it was registered: December 6, 2024.

What it does#

• Adds the substance with CAS number 192003-74-0 to Part 1 of the Domestic Substances List.

• Adds the following substances to Part 3 of the Domestic Substances List (each listed by CAS number and the chemical description shown in the order):

  • 19725-3 — 1,3-Benzenedicarboxylic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid, α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)], 1,1’-methylenebis[4-isocyanatobenzene] and 1,2-propanediol, polyalkoxymetalloid-N-[(polyalkoxymetalloid)alkyl]-1-propanamine-blocked
  • 19743-1 — Alkanedioic acid, polymer with alkyl-(hydroxyalkyl)-alkanediol, alkyl-2-propylhexyl alkyl-2-propylhexyl 2-propylheptyl ester
  • 19744-2 — Copolymer of 2-propenoic acid, alkyl ester, 2-propenoic acid, 2-methyl- and poly(oxy-1,2-ethanediyl), α-(2-alkyl-1-oxo-2-propen-1-yl)-ω-hydroxy, alkyl ethers
  • 19746-4 — Alkane, 1,6-diisocyanato-, homopolymer, plant-based oil and polyethylene-poly alkylene glycol alkyl ether-blocked
  • 19747-5 — Polysaccharide, (alkadecyloxy)-substituted alkyl ether
  • 19748-6 — Carbomonocycle dicarboxylic acid, polymer with alkanediol, alkanediamine, hexanedioic acid, 1,6-hexanediol, hydroxy-(hydroxymethyl)-methylalkanoic acid and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trialkylcyclohexane, compd. with trialkylamine
  • 19749-7 — Alkanedioic acid, 1,6-dihydrazide, polymer with 2-(chloroalkyl)oxirane polymer with 5-isocyanato-1-(substitutedalkyl)-1,3,3-trimethylcyclohexane and 4,4’-(1-methylethylidene)bis[phenol] 4-oxopentanoate (ester), 1,6-diisocyanatohexane, hydrazine, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl), 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, compd. with 2-(dimethylamino)alkanol

• The order states it was made by Steven Guilbeault, Minister of the Environment.

• The order’s text says it comes into force on the day it is registered (which is December 6, 2024).

Who's affected#

• Companies that make, import, or sell the listed chemicals in Canada.
• Downstream manufacturers, formulators, or distributors who use those substances in products.
• Environmental and public-health officials who track and assess chemicals under the Canadian Environmental Protection Act, 1999.
• It is not clear from the order how widely each listed chemical is used or in what products, so consumers and workers may or may not be directly affected depending on specific uses.

Why it matters#

• Being added to the Domestic Substances List means the government has formally recorded these chemicals as substances in Canadian commerce or subject to tracking.
• That can make it easier for regulators to request information, conduct risk assessments, or propose future controls if needed.
• For businesses, the change signals they should check whether these listings affect reporting or data obligations under federal chemicals law.
• The order itself does not explain the uses, quantities, or any new immediate restrictions; those details would appear in separate assessments or notices if the government pursues them.