Diesel Trucks

Thanks to the 2010 federal requirement of ultra-low sulfur diesel fuel and new Tier 4 emissions standards by the EPA, particulate emissions from non-road diesel engines, including agricultural and construction equipment, have been reduced by 99%.
Mar 24, 2014   Environmental Health News
Nonunion truckers at the Port of Oakland are on a work-stoppage over both work rules and compliance with a 2008 CARB diesel regulation requiring drayage trucks to be 2007 or newer. They want a year extension and more funding to assist in compliance.
Oct 27, 2013   San Francisco Chronicle
Just as the power industry turned toward lower priced natural gas and away from dirtier coal, there are signs that trucks and trains are looking to lower priced liquefied natural gas (LNG) to replace diesel-powered vehicles, but there are challenges.
Apr 29, 2013   The New York Times - Energy & Environment
At a crucial two-day meeting, the California Air Resources Board may adopt, reject or modify two separate, landmark, controversial plans - one on climate change, the other on diesel emissions from trucks and buses.
Dec 11, 2008   San Francisco Chronicle