At the first negotiating session on a final version of the new $500 billion U.S. farm bill, several lawmakers said COOL should be revised or repealed.

The change is due to country-of-origin labeling rules which require labels on meat packages to show where an animal was born, raised and slaughtered.

The brief argues that the trial court incorrectly accepted the Agricultural Marketing Service’s argument.

Canada: "The U.S. government continues its unfair trade practices, which are severely damaging to Canadian industry and jobs."

In their complaint, the organizations explained that the final rule violates the United States Constitution by compelling speech in the form of costly and detailed labels on meat products.

Canada announced plans to impose tariffs on a list of U.S. products in retaliation for the COOL (country-of-origin labeling) requirement for meat products.

USDA’s Agricultural Marketing Service today issued a Final Rule to modify the labeling provisions for the mandatory Country of Origin Labeling (COOL) program.

That amount is the annual cost to Canada's beef and pork industry since the U.S. imposed mandatory country of origin labeling requirements in 2008.

“USDA expects that these changes will improve the overall operation of the program and also bring the current mandatory COOL requirements into compliance with U.S. international trade obligations,” said Agriculture Secretary Tom Vilsack.

The Canadian government issued a statement declaring that the plan falls short and vowed to continue fighting it.