Domestic Substances List: Paenibacillus name update

Summary#

Order 2023-66-04-01 Amending the Domestic Substances List updates two microorganism entries on the Domestic Substances List to use the currently accepted genus name. The order was made under the Canadian Environmental Protection Act, 1999 and was registered on March 14, 2023 (published in the Canada Gazette on March 29, 2023).

What it does#

• Removes the entries listed as Bacillus polymyxa ATCC842 and Bacillus polymyxa ATCC55407 from Part 5 (Organisms) of the Domestic Substances List.
• Adds the entries Paenibacillus polymyxa ATCC 842 and Paenibacillus polymyxa ATCC 55407 in their place, in alphabetical order.
• Comes into force on the day it was registered: March 14, 2023.

Who's affected#

• Laboratories, researchers and companies that work with or supply these specific microbial strains.
• Businesses and regulators who use the Domestic Substances List to identify and track organisms for reporting, import/export, approvals, or compliance.
• The Gazette notice does not give a detailed list of affected parties, so the full set of who will notice this change is not specified.

Why it matters#

• This is essentially a name correction to align the list with current scientific naming.
• Using the correct organism name reduces confusion when matching regulatory listings with lab cultures, product labels, approvals, or scientific literature.
• For anyone whose permits, filings, or inventories rely on exact listed names, this change could matter when identifying or documenting these strains.