A group of cattle farmers in the U.S. decided to ask the American government to introduce country of origin labelling for meat products. You'll understand, then, that when an organization in a free-trade zone slaughters Canadian animals in a slaughterhouse, it must slaughter the animals in segregation and identify them at the counter. Many slaughterhouses simply decided not to purchase Canadian cattle. There was true segregation, and that's why it was so costly for cattle farmers.
After a number of years, working hard alongside the Canadian Cattlemen's Association, we successfully challenged the measure under the agreement.
As you can imagine, it's much easier to do business when segregation isn't an issue.