A loophole in the government’s New Vehicle Efficiency Standard could be exploited by car makers seeking to import higher-polluting cars, and would undermine the first three years of the new climate laws. A loophole in the government’s New Vehicle Efficiency Standard could be exploited by car makers seeking to import higher-polluting cars, and would undermine the first three years of the new climate laws. Environmental Policy, Automotive Industry, Climate Change, Federal Government, Environmental Impact Latest business news