Current status: Open
Opened on November 28, 2025 and closes on December 29, 2025
About the consultation
We are seeking comments on the following amended single ingredient feed (SIF) description for L-ascorbyl-2-polyphosphate.
Background
The Feeds Regulations, 2024 require a proponent to submit a pre-market application for new feed ingredients or SIFs that have been modified such that they differ from an approved SIF or SIFs that are for a new purpose. We evaluate the information in the application to establish that the SIF is safe, effective and labelled correctly.
Approved SIFs are listed and described in the Canadian Feed Ingredients Table (CFIT), which is incorporated by reference (IBR) into the Feeds Regulations, 2024. Our Incorporation by Reference Policy requires that a consultation be conducted before changes to IBR documents are made. Refer to Documents incorporated by reference under the Feeds Regulations, 2024 for additional information.
Amended SIF description
It has been identified that an error was made while transferring the SIF description of L-ascorbyl-2-polyphosphate from Schedule IV of the Feeds Regulations, 1983 to the CFIT of the Feeds Regulations, 2024.
The livestock species for which L-ascorbyl-2-polyphosphate is approved for use in feeds are not listed in full in the CFIT. This SIF was originally approved for use in fish feeds and then the list of approved species was expanded to include feeds for livestock and fish. The full list of approved species was to be included in this SIF description in the CFIT, but only salmonid fish is found in its description in the CFIT. Both livestock and fish feeds were found in the SIF definition in Schedule IV. Therefore, not all of the approved species were transferred when adding this description to the CFIT.
We intend to amend the existing SIF description for L-ascorbyl-2-polyphosphate under subclass 5.4.2 (Vitamins excluding those from fermentation processes) of class 5 (Nutritional ingredients) in part 1 of the CFIT. The amended description will contain all approved species for which this SIF has been approved for.
The amended description is:
1-504-022 L-Ascorbyl-2-polyphosphate (or ascorbic acid polyphosphate)
is the tri-, di- and mono-phosphate esters of L-ascorbic acid and is a source of ascorbic acid. It is approved for use in livestock feeds.
It shall be labelled with guarantees for minimum milligrams of phosphorylated ascorbic acid per kilogram and minimum milligrams of ascorbic acid equivalent per kilogram.
Additional information
It has been identified that the livestock species for which this SIF has been approved for is not correct. This SIF is approved for use in feeds for all livestock species and not only for use in feeds for salmonid fish. The correct approved species are found in the definition in Schedule IV of the Feeds Regulations, 1983. However, there was a transfer error when this SIF was added to the CFIT in which it did not include feeds for the approved livestock species for which this SIF can be used in.
No other changes are to be made to this description, except adding all approved livestock species to its description in the CFIT.
Who is the focus of this consultation
Animal feed stakeholders, including:
- suppliers of feed ingredients
- commercial feed manufacturers
- feed importers, distributors and retailers
- industry associations
- other government departments
- international trading partners
- veterinarians
All comments are welcome from industry, governments, the public or other organizations or individuals.
How to participate
We are seeking feedback on the amended description for L-ascorbyl-2-polyphosphate.
Stakeholders are encouraged to share comments if there are:
- concerns about the accuracy of the SIF description
- any scientific data that should be considered before the SIF is amended
Our evaluators will review scientific questions or information for consideration in the evaluation. They will also evaluate non-scientific input and explore appropriate ways of addressing it.
Comments can be sent by email to the Animal Feed Program (AFP) at cfia.afp-paa.acia@inspection.gc.ca. Please use "L-ascorbyl-2-polyphosphate" in the subject line of the email. We are asking for comments and feedback by December 29, 2025, 30 days from the date of this posting.
Next steps
We will review all of the comments received. If no significant scientifically valid concerns are raised, we will finalize the amended description for L-ascorbyl-2-polyphosphate.
If significant concerns are raised, we will evaluate the additional information.
This amended SIF description will be added to the CFIT at the next update.
Related information
Contact us
Animal Feed Program (AFP)
Canadian Food Inspection Agency
Email: cfia.afp-paa.acia@inspection.gc.ca