Canada and Mexico won a trade case against a U.S. law on meat labeling at the World Trade Organization.

A WTO dispute panel agreed with their complaint that U.S. mandatory labeling laws were too stringent, giving U.S. cattle and hog sales an unfair advantage over imports from Mexico and Canada.

The panel said the U.S. rules, so called country of origin labeling, or COOL, violated WTO rules on technical barriers to trade. (Reuters)