07/10/2013 02:53 EDT | Updated 09/09/2013 05:12 EDT

Meat producers sue over U.S. labelling laws

Eight American and Canadian meat and livestock groups have filed suit against the U.S. Department of Agriculture over revised meat-labelling laws.

They called the so-called country-of-origin labelling rules “capricious and arbitrary” and argued the USDA is exceeding its mandate in putting them into effect.

The rules, which took effect May 23, require meat labels to detail where animals used for meat were born, raised and slaughtered.

The lawsuit is backed by the Canadian Cattlemen’s Association, Canadian Pork Council and North American Meat Association, as well as the American Association of Meat Processors, American Meat Institute, National Cattlemen's Beef Association, National Pork Producers Council and Southwest Meat Association.

The U.S. rule revisions violate the U.S. Constitution by compelling speech in the form of the labels that does not directly advance a government interest, the meat industry groups said.

“Beef is beef, whether the steer or heifer was born in Montana, Manitoba or Mazatlan,” the complaint says.

“All livestock and meat process at federally inspected establishments in the U.S….are subject to the same health and safety requirements,” the filing continues.

In addition to the labelling requirement, the law prohibits processors from mixing meat from animals that come from different countries.

Martin Unrau of the Canadian Cattlemen's Association says the rule will hurt Canada's livestock producers and their U.S. customers. He calls it unfair trade discrimination.

The Canadian Pork Council estimates the U.S. labelling policy is already costing hog producers about $500 million per year, including the discounts pork producers are offering to grocers to compensate for the increased labelling and weighing costs.

The groups involved in the lawsuit say the rules will fundamentally alter the meat industry and will particularly hurt meat companies located along the U.S.-Mexico and U.S.-Canada border.

Many U.S. producers ship meat to be processed at these plants, but that practice would likely stop under the new laws, the suit says. Retailers would be more likely to seek out products with simpler labels that show meat was born, raised and processed in the U.S., it argues.

The new rules were put forward after Canada and Mexico launched a World Trade Organization challenge to the U.S. COOL labelling laws estalished four years ago and won.

U.S. imports of Canadian cattle and pigs declined after COOL laws were implemented.

Agriculture Minister Gerry Ritz has said Ottawa could seek retaliatory compensation from the U.S. for the new laws under WTO rules.