| http://www.w3.org/ns/prov#value | - line.The new requirements would go into effect between 2009 and 2011 under a proposal Wednesday by the Environmental Protection Agency, making federal standards similar to California's evaporative emission standards for light-duty vehicles.EPA Administrator Stephen Johnson said that within the next two dozen years, air toxics such as benzene and other hydrocarbons would fall to 80 percent below 19
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