Proposed Maximum Residue Limit PMRL2013-02, Chlorfenapyr

Notice to the reader: The online consultation is now closed. Comments and suggestions received during the public consultation period are being considered in the finalization of this document. The final report will be made available as soon as possible.

Pest Management Regulatory Agency
22 February 2013
ISSN: 1925-0843 (PDF version)
Catalogue number: H113-24/2013-2E-PDF (PDF version)

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Under the authority of the  Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) has received applications to register technical grade chlorfenapyr and the end-use product Pylon Miticide Insecticide for use in Canada on fruiting vegetables (Crop Group 8).

The evaluation of these chlorfenapyr applications indicated that the end-use product has merit and value and the human health and environmental risks associated with their proposed uses are acceptable. Details regarding these applications can be found in Proposed Registration Decision PRD2013-01, Chlorfenapyr, posted to the Health Canada website on January 22, 2013.

Before registering a pesticide for food use in Canada, the PMRA must determine the quantity of residues that are likely to remain in or on the food when the pesticide is used according to label directions and that such residues will not be a concern to human health. This quantity is then legally established as a maximum residue limit (MRL). An MRL applies to the identified raw agricultural food commodity as well as to any processed food product that contains it, except where separate MRLs are specified for the raw agricultural commodity and a processed product made from it.

Consultation on the proposed MRLs for chlorfenapyr is being conducted via PRD2013-01. Information regarding the proposed MRLs can be found in Sections 3.5 and 7.1. Supporting field trial residue data are provided in Appendix 1, Table 8. The PMRA invites the public to submit written comments on the proposed MRLs for chlorfenapyr in accordance with the guidance found in PRD2013-01.

To comply with Canada's international trade obligations, consultation on the proposed MRLs is also being conducted internationally by notifying the  World Trade Organization, as coordinated by the  Standards Council of Canada.

The proposed MRLs for chlorfenapyr are as follows.

Table 1 - Proposed Maximum Residue Limits for Chlorfenapyr

Common Name	Residue Definition	MRL (ppm)	Food Commodity
ppm = parts per million
Chlorfenapyr	4-bromo-2-(4-chlorophenyl)-1-(ethoxymethyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile	2.0	Fruiting vegetables (Crop Group 8)

MRLs are proposed for each commodity included in the listed crop groupings in accordance with the Residue Chemistry Crop Groups webpage in the Pesticides and Pest Management section of Health Canada's website.

MRLs established in Canada may be found using the  Maximum Residue Limit Database on the Maximum Residue Limits for Pesticides webpage. The database allows users to search for established MRLs, regulated under the Pest Control Products Act, both for pesticides or food commodities.

International Situation and Trade Implications

MRLs may vary from one country to another for a number of reasons, including differences in pesticide use patterns and the locations of the crop field trials used to generate residue chemistry data.

Table 2 compares the MRLs proposed for chlorfenapyr in Canada with corresponding American tolerances. American tolerances are listed inthe  Electronic Code of Federal Regulations, 40 CFR Part 180, by pesticide. Currently, there are no Codex MRLs^{Footnote 1} listed for chlorfenapyr in or on any commodity on the Codex Alimentarius  Pesticide Residues in Food website.

Table 2 - Comparison of Canadian MRLs, American Tolerances and Codex MRLs (where different)

Food Commodity	Canadian MRL (ppm)	American Tolerance (ppm)	Codex MRL (ppm)
Fruiting vegetables (Crop Group 8)	2.0	1.0	Not Established

Next Steps

The PMRA invites the public to submit written comments on the proposed MRLs for chlorfenapyr up to 75 days from the date of publication of this document. Please forward your comments to Publications. The PMRA will consider all comments received before making a final decision on the proposed MRLs. Comments received will be addressed in a separate document linked to this PMRL. The established MRLs will be legally in effect as of the date that they are entered into the  Maximum Residue Limit Database.