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onrdiesel -- Truck and Bus Fleet Calculator Updated Posted: 05 Aug 2011 13:32:33
The California Air Resources Board (ARB or Board) staff has posted an updated version of the Fleet Calculator. The Fleet Calculator is an Excel spreadsheet to assist fleet owners in evaluating various compliance strategies to comply with the Truck and Bus regulation. The calculator allows the fleet owners to input the engine model year, and emission control technology assumptions to determine what compliance options may be best for the fleet each calendar year. Fleet owners can view automated compliance strategies for meeting the compliance schedule based on engine model year or can evaluate more flexible compliance strategies including the PM filter phase-in option, compliance credits, and special provisions. The tool has been updated to reflect the amendments considered by the Board in December 2010 and reflects details addressed as part of the 15 day public comment period. The Excel spreadsheet is available at: http://www.arb.ca.gov/msprog/onrdiesel/compliancetool.htm For other information about the regulation, please visit http://www.arb.ca.gov/dieseltruck . If you have any questions, please call 866-6DIESEL (866-634-3735) or email at: firstname.lastname@example.org 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.