California has not violated interstate commerce laws with its regulations on fuels based on carbon production, ruled a federal appeals court Sept. 18.
With yearend upgrade deadlines looming for small-fleet (1-3-truck) owner-operators of 1996-2006 model-year engines, purchases must be made by Sept. 1 to take advantage of manufacturer-delay extension if necessary.
With 1996-2004 model-year engines current under DPF retrofit or upgrade requirements and 2005-06 engines coming under the fun in January, this poll looks at owner-operators' current California strategy.
The total number of verified DPFs sold by companies for diesels operating in California in the first half of 2013 was 3,508 and includes both passive and active DPFs.
President Barack Obama proposed this week more comprehensive and challenging standards for truck emissions and fuel economy that would be phased in through 2018.
According to a report released this week from the Diesel Technology Forum, about 28 percent of trucks registered in the U.S. employ 2007 or later emissions mitigation technology and output almost no particulate matter.
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