December 1, 2017


Heavy Duty Emission Regulations -- Past and Future


1:40 p.m. – 3:00 p.m.


1605 Tilia, Room 1103, West Village


Regulation of emissions for heavy-duty diesel trucks didn’t begin until a decade after the emission control of passenger vehicles began. However since then the importance of reducing diesel truck emissions has grown greatly as the health effects of diesel soot and trucks’ large contribution to the NOx inventory has been better understood. More recently an effort to increase the efficiency and reduce greenhouse gas emissions of diesel trucks also has begun. This presentation will address the evolution of regulations and compliance efforts to reduce diesel truck urban and climate emissions, and will apply the lessons learned to the technological and compliance challenges facing future diesel trucks.

Biographical Sketch

John Wall has more than 35 years of industry experience in internal combustion engine technology, fuels and emissions, and in global engineering organization development. Most recently, John served as Chief Technical Officer of Cummins Inc., the world’s largest independent manufacturer of diesel engines and related technologies, retiring in 2015. As he progressed from research and product engineering into engineering leadership, John remained directly involved in the most critical technology programs for low emissions, powertrain efficiency and alternative fuels. He also led the growth of Cummins technical organization from 1000 engineers, mostly centered in the U.S., to more than 6000 engineers globally, establishing new technical centers in India and China. Prior to joining Cummins in 1986, John led Diesel and Aviation Fuels Research for Chevron, where his team was first to discover the important contribution of fuel sulfur to diesel particulate emissions. He is a member of the National Academy of Engineering and is a Fellow of the Society of Automotive Engineers.

Tom Cackette was the Deputy Executive Officer at the California Air Resources Board for 30 years, prior to his retirement in 2013. He directed development and implementation of emission control regulations for nearly every mobile source of emissions. He also worked for USEPA developing smog check programs, and began his career analyzing rocket engine performance. Since retirement he has been consulting on issues he hopes will contribute to cleaner air and reduced climate emissions. He is a member of the Nations Research Council committee addressing future regulation of greenhouse gas emissions and fuel consumption from heavy duty trucks.

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