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TT Archives: Trucks and Emissions
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The starting point for limiting diesel emissions can be traced to a provision in a bill reauthorizing and expanding the Clean Air Act of 1977 that was signed into law by President George H.W. Bush in 1990.
That law led to the adoption of a series of emissions-control technologies in 2002, 2007 and 2010 and now has given way to newly proposed federal fuel efficiency standards for medium- and heavy-duty trucks.
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