Many EC countries have mandated a required percentage of women on their boards, from 20% in France by 2014 to 25% in Britain by 2015.

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In addition, the new timeline for fuel economy standards is more aggressive than the one required under a 2007 energy law, which mandated a 40% increase in average vehicle fuel economy by 2020.

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Required safety features make cars heavier, but the added weight hurts mandated fuel economy.

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