In addition, Schaeffer said that today in California, more fine particles come from brake and tire wear than from all on-road diesel engines. He added that because of these major advances, it would take 60 of today's new diesel trucks to equal the particulate emissions of just one truck made in 1988.
"Over a decade ago the diesel industry was challenged to fundamentally transform its technology to meet near zero emissions levels," Schaeffer said. "Many thought it could not be done, but today proves what can happen when America's diesel engineers and equipment makers roll up their sleeves and get to work.
"Meeting these emissions challenges has delivered tangible benefits to air quality and public health and will continue to pay dividends in the months and years ahead as more of the new generation technology replaces the old.
"But these accomplishments represented here today have also now positioned diesel as a key technology as a key player in a sustainable future here in California and around the world.
"As you've heard the next challenges involve retaining our clean air progress while improving efficiency and lowering GHG emissions, and exploring more advanced fuels. It's a very big challenge and is the next chapter in the clean diesel story. Early results are encouraging – these new 2012 truck engines are not only near zero emissions but they are also up to 10 or 12 percent more energy efficient."
Jed Mandel, the President of the Truck and Engine Manufacturers Association, highlighted the regulations implemented by EPA and ARB that led to the evolution of clean diesel technology since the 1998 Clean Air Act emissions limits.
Mandel thanked ARB Chair Mary Nichols and the ARB Board "for their leadership, vision and tenacity" in working to address greenhouse gas emissions and furthering clean diesel technology advancements.
"We embrace the fuel efficiency, power, performance, reliability, durability, low hydrocarbon (HC) and carbon monoxide (CO) emissions and high torque of diesel power," Mandel said. "We essentially have eliminated NOx and PM emissions, minimized noise, and burn a very low-sulfur fuel."
"For Caterpillar, it's fitting that we're celebrating cutting-edge technology in California as this state is the birthplace of Caterpillar innovation," said Tana Utley, Caterpillar Chief Technology Officer and Vice President of Product Development and Global Technology. "The development of our company's first diesel engine and our first diesel tractor was completed in our San Leandro, California, headquarters in the mid 1930's. Today we're marking another transformation in the industry: engines that offer our customers superior performance at near zero emissions."
"Effective environmental regulations can only be developed through a strong partnership between government and industry, and that's what you see here today," said Dr. John Wall, Vice President and Chief Technical Officer for Cummins Inc. "Cummins has always been committed to working with the Air Resources Board, the EPA and with other emissions regulators to support a clear, consistent, challenging and enforceable process that recognizes the needs of business and provides incentives for companies to create innovative technologies as well as jobs in this country.
"We also recognize that these new technologies must work well in the hands of our customers. We are very happy to be here today to showcase our new technologies and products that have delivered value to the environment and to our customers."
The Diesel Technology Forum is a non-profit national organization dedicated to raising awareness about the importance of diesel engines, fuel and technology. Forum members are leaders in clean diesel technology and represent the three key elements of the modern clean-diesel system: advanced engines, vehicles and equipment, cleaner diesel fuel and emissions-control systems.