UPDATE 1-EPA unveils 'ambitious yet responsible' biofuel targets
May 29, 2015 at 11:01 AM EDT
NEW YORK, May 29 (Reuters) - U.S. regulators on Friday unveiled much-anticipated targets for the blending of renewable fuels into motor fuel for the three years to 2016, proposing some 17.4 billion gallons of renewable fuels must be used in gasoline or diesel next year.