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Policy Integrity submitted an amicus brief today on a federal court case challenging the EPA’s ability to regulate emissions from motor vehicles. Some industry groups and states are contesting the validity of the EPA and NHTSA’s (National Highway and Traffic Safety Administration) “Light-Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards” finalized last year.

In their first notice of intent to propose new fuel economy standards for light-duty vehicles Model Year 2017 and later, EPA and NHTSA ask for comments on their research plan for the coming months and raise crucial questions, such as why the private market does not currently provide for more fuel-efficient vehicles and whether there are any “unidentified additional costs” of fuel-efficient