As of Tuesday, the Canadian government has filed a complaint with the World Trade Organization against the United States concerning the over mandatory country-of-origin labeling requirements on meat products.

The complaint alleges that COOL will impose unnecessary costs on meatpackers that slaughter Canadian animals imported into the United States. Also that the U.S. law could eventually lead to more extensive and restrictive labeling requirements in other countries.

"We believe that the country-of-origin legislation is creating undue trade restrictions to the detriment of Canadian exporters," said Stockwell Day, Canadian trade minister in a released statement.

The WTO filing now will trigger a consultation period required between the United States and Canada, with the goal of working to resolve dispute. If those discussions fail to resolve the issue, it will then move to a WTO dispute-settlement panel, which will rule on the matter.