The World Trade Organization has ruled that the United States has not done enough to change its meat labeling rules after losing a challenge brought by Mexico and Canada over its country-of-origin labeling regulations, Reuters reports.

The WTO ruled in June 2012 that the COOL program unfairly discriminated against Canada and Mexico because it gave less favorable treatment to beef and pork imported from those countries than to U.S. meat. The U.S. argued that it had made changes to comply with that ruling, but the other companies disagreed.