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Long-outlawed US trade policy wins WTO approval in Canada lumber dispute

FILE PHOTO: Softwood lumber is stacked at Groupe Crete, a sawmill in Chertsey, Quebec, Canada January 17, 2018. REUTERS/Christinne Muschi/File Photo

GENEVA, April 9 (Reuters) - A World Trade Organization ruling approved a long-outlawed U.S. trade policy on Tuesday, when a panel of adjudicators said Washington's use of "zeroing" to calculate anti-dumping tariffs was permissible in the case of Canadian softwood lumber.

The WTO's long-running row over zeroing is a technical dispute that turned into a power struggle between the United States and the arbiters of international trade law. Some lawyers see it as a major factor in U.S. President Donald Trump's decision to block appointments of judges at the WTO. (Reporting by Tom Miles; editing by Stephanie Nebehay)