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Cars, Smog, and EPA

Legal Planet

This is part of an occasional series of posts about the evolution of pollution standards. Today’s subject is pollution control for new vehicles, which have been known to cause smog since the 1960s. The history of these pollution standards is quite distinctive. Congress adjusted the standards twice.

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The evolution of US NOx standards for cars

Environment, Law, and History

That’s quite different from the standards for industrial pollution sources, which Congress has always delegated to EPA. The reason may have been the high political stakes in the car industry or the relatively easier task of setting standards for new products in a single industry using a single energy process. EPA, 1973). Read more »