Consultation on Chlorpyrifos and Its Associated End-use Products: Updated Environmental Risk Assessment, Proposed Re-evaluation Decision PRVD2019-05

Notice to the reader:

The online consultation is now closed.

Health Canada is proposing the cancellation of many uses of chlorpyrifos due to risks to the environment, with a small number of uses acceptable for continued registration in Canada.

Chlorpyrifos is a broad spectrum insecticide that is widely used to manage insects in production of fruits, vegetables, cereals, grains, legumes, tree nuts, oilseeds, greenhouse and outdoor ornamentals and turf. It is also applied in non-residential, outdoor areas to control mosquitos and destructive tree insects in and around non-residential buildings.

To protect the environment, almost all agricultural uses are proposed for cancellation. Uses acceptable for continued registration with label changes are:

Updates to the labels of the remaining registered products include standard environmental statements to prevent effects on non-target species or aquatic systems.

For a full list of products containing chlorpyrifos, please consult Appendix I in the PRVD or visit the Pesticide Label Search database.

For more information on the proposed decision open the “Proposed Re-evaluation Decision”.

How to Get Involved

This consultation is open for comment from 31 May 2019 to 29 August 2019 (90 calendar days).

To comment on PRVD2019-05:

Step 1        Request the full consultation document to read the Science Evaluation that is the basis of this proposed regulatory decision.
Step 2        Submit comments to the PMRA Publications Section.

All comments received will be considered. A final re-evaluation decision will consider additional scientific information provided during the public comment period.

Please refer to the document title (for example: PRVD2019-05, Chlorpyrifos and Its Associated End-use Products: Updated Environmental Risk Assessment) when providing comments.

Reporting to Canadians

Health Canada will make the results of this consultation available on this website. Once the decision is finalized, the PMRA will post a Re-evaluation Decision on the Pesticides and Pest Management Reports and Publications portion of

If you have any questions, contact the Pest Management Information Service.

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