Canada will now enforce a zero tolerance policy for violative residues of carbadox on imported pork products. The policy will include a test-and-release inspection at the border.

The U.S. and Canada use different testing methods to detect carbadox residues in tissue. The FDA is conducting a study which will compare the two tests. Until that study is completed, Health Canada’s Veterinary Drugs Directorate has issued an interim surveillance and testing program for carbadox. In turn, the Food Safety and Inspection Service has agreed to report and stop all shipments to Canada of products with occurrences of the following:

Positive findings: > 0.03 ppm from liver (violative residues according to US standards), and,
Non-violative findings: 0.015 to 0.03 ppm from liver (non-violative according to US standards, but product not acceptable to Canada).

Health Canada’s Veterinary Drugs Directorate issued a stop-sale order for carbadox in 2001, and in 2004, banned the legal sale of carbadox products in the country.

Source: AASV/ National Pork Board