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onrdiesel -- Overview of Truck and Bus Regulation Fact Sheet Posted
Posted: 06 May 2011 15:35:23
ARB staff have posted a fact sheet that provides an overview of the Truck and Bus Regulation consistent with the amendments approved by the Air Resources Board at its hearing on December 17, 2010. The fact sheet is available at: http://www.arb.ca.gov/msprog/onrdiesel/documents/fsoverview.pdf. For more information on the Truck and Bus regulation, go to: www.arb.ca.gov/dieseltruck or call 1-866-6DIESEL. Background On December 11, 2008, the Air Resources Board (ARB or Board) approved for adoption the Truck and Bus regulation to control emissions from nearly all existing diesel powered heavy-duty trucks and buses operating in California. The regulation became effective under California law on January 8, 2010. The regulation applies to diesel fueled trucks and buses with a gross vehicle weight rating (GVWR) greater than 14,000 pounds that are privately owned, federally owned, and to publicly and privately owned school buses. Local and state government owned diesel fueled trucks and buses are already subject to other ARB regulations. Reducing emissions from in-use trucks and buses is necessary to meet federally imposed clean air standards and to reduce the adverse health effects from truck and bus pollution. On December 17, 2010, the staff recommended amendments, which are presently pending adoption, which would delay the initial requirement to install particulate matter (PM) retrofit filters by one year to January 1, 2012 and extend the time before a vehicle equipped with a PM filter would have to have an engine that meets 2010 model year emission standards. The amendments would also defer engine replacements for vehicles without PM filters two years until January 1, 2015. Prior to 2020, replacements would be limited to 20 year old or older trucks that are not equipped with PM filters. By January 1, 2023, most vehicles would still need to be equipped with an engine meeting 2010 model year emission standards.