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U.S. seeks faster upgrade of oil-train tankers

Posted: July 24, 2014 at 3:40 a.m.

Federal regulators said Wednesday that they would require railroads and oil shippers to use stronger tank cars to transport crude oil across the nation within two years, offering a speedier timetable than initially expected in response to a spate of derailments and spills involving oil trains over the past year.

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