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ordiesel -- Changes to Off-road Diesel Vehicle Regulation Approved
Posted: 31 Jul 2009 14:11:49
On July 23, 2009, the Air Resources Board (ARB) approved amendments to the in-use off-road diesel vehicle regulation (the regulation). The amendments include: • New credits for fleets that have experienced drops in activity of their vehicles and/or that have reduced their fleet size; and • Allowing all large fleets to delay a portion of their compliance obligations currently required for 2011 and 2012 until 2013. The amendments also include new incentives to spur early actions by fleets including the following: • Allow fleets to claim an exemption for up to 15 percent of their total horsepower (hp) from future turnover if they install a retrofit prior to March 1, 2011; • Allow fleets to claim double credit for NOx retrofits installed by March 1, 2011; • Allow medium and small fleets to claim double credit for PM retrofits installed by March 1, 2012; and • Allow fleets to accumulate NOx carryover turnover credit for early repowers installed, regardless of the total amount of fleet hp that is repowered. Staff is working to update our compliance planning tools, the fleet average calculator and DOORS compliance planning feature, to reflect the amendments and will release revised versions as soon as possible. The Board made one change to staff’s proposal for the regulation – directing staff to change the word “impossible” to “infeasible” in the following sentence regarding the exemption for unsafe retrofits so that it reads as follows, “The Executive Officer shall accept the official findings of the responsible federal or state agency that compliance with the requirements of this regulation would make compliance with the federal and state safety or health requirements infeasible.” The Board also directed staff to report back in December, 2009, after the initial reporting for the regulation is complete and in July, 2010, after data has been compiled regarding the effect on emissions from the legislatively directed amendments and the economic downturn. For more information on the off-road diesel regulation, please visit the homepage at http://www.arb.ca.gov/msprog/ordiesel/ordiesel.htm