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Officials at the Cuban Interest Section in Washington have held at least 30 meetings with companies interested in doing business in the island nation.
Members of the Transpacific Stabilization Agreement are recommending two $600 general rate increases and a $400 peak season surcharge.
Three of the biggest U.S. retailers have said maintaining in-stock levels was a challenge in first quarter 2015 because of West Coast port disruption.
Changes to Maritime Security Program could harm other U.S.-flag carriers.