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arbcombo -- Extension of the Cleaire Horizon Electric Particulate Filter On-Road Verification

Posted: 15 Jun 2007 14:08:15
The Air Resources Board (ARB) has extended the on-road
verification of the Cleaire Horizon Electric Particulate Filter
(Horizon).  The Horizon is verified as a Level 3 Plus diesel
emission control system for use with most four-stroke on-road
diesel engines up through and including the 2006 model year
having displacements up to 15 liters.  Diesel engines of model
year 2006 and 1993 or older with original equipment diesel
oxidation catalysts are now included in this verification
provided certain conditions are met.  The Horizon uses a silicon
carbide wall-flow filter with an electric heater for regeneration
to achieve an 85 percent reduction in emissions of diesel
particulate matter.  Specific conditions for which the Horizon
has been approved may be found in the Executive Order, which
will be posted within ten days on the ARB website at

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