E.P.A. Issues Stiffer Rules on Vehicle Fuel Ratings

After two years of imposing increasingly stiff penalties on automakers that overstate their fuel economy ratings, federal regulators on Monday said they would tighten guidelines used in determining the mileage advertised to consumers, reports the New York Times. Next year, automakers will face stricter rules for testing fuel economy and higher potential penalties. The rules for the test had not been updated in over 10 years.