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Verification of the ESW Canada’s ThermaCatTM system for 175 to
300 Off-Road Vehicles. 

The Air Resources Board (ARB) has verified EWS Canada’s
ThermaCatTM diesel retrofit system for certain off-road vehicles
equipped with heavy-duty diesel engines with model years between
1996 and 2009.  Approved engines are certified or equivalent to a
particulate matter emission level equal to or less than 0.2 grams
per brake horsepower-hour, and are not equipped with exhaust gas
recirculation systems.  The ThermaCatTM system reduces emissions
of diesel particulate matter by at least 85 percent and is
designated as a Level 3 plus system.  The primary components of
the actively regenerated ThermaCatTM system include a silicon
carbide wall-flow filter, a diesel oxidation catalyst and a
system controller.  The ThermaCatTM system is compatible with
off-road vehicles using diesel fuel that contains up to 20
percent biodiesel.  Specific conditions for which the ThermaCatTM
system has been approved may be found in the Executive Order
which will be available within 10 days on the ARB website at:
http://www.arb.ca.gov/diesel/verdev/verdev.htm . 

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