Saccharomyces strain 5318 added to Domestic Substances List

Summary#

The government added 19795-3 N Saccharomyces species strain 5318 to Part 7 of the Domestic Substances List by Order 2025-112-10-01 Amending the Domestic Substances List. The order came into force on October 28, 2025.

Because it is now on the list, this specific living organism is no longer treated as a “new” organism under the federal new-substances rules.

What it does#

• Adds 19795-3 N Saccharomyces species strain 5318 to Part 7 of the Domestic Substances List.
• Makes that change effective on October 28, 2025 (the registration date).
• As a listed substance, that specific strain is no longer subject to the notification and assessment steps that apply to new organisms under the New Substances Notification Regulations (Organisms).

Who's affected#

• Companies or people who manufacture, import, supply or use 19795-3 N Saccharomyces species strain 5318 in Canada.
• Suppliers, industrial biotech firms, or research labs that handle this specific strain.
• Regulators tracking which organisms are already in Canadian commerce.

Other strains or species are not affected by this change unless they are the same named strain.

Why it matters#

• For businesses and researchers dealing with this strain, the change removes the need for the federal “new organism” notification process, which can make importing or using the strain simpler and faster.
• The listing is administrative: it does not mean the government endorses the strain, nor does it exempt it from any other laws or safety rules that might apply (for example, health, food, or workplace regulations).
• There are no new regulatory costs or requirements from this order — it mainly updates the government’s inventory so everyone knows this strain has already been assessed and listed.