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This page last reviewed
March 21, 2008
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Level 3
| LEVEL 3 verification is for those
technologies achieving at least an 85 percent or greater reduction in
particulate matter or less than 0.01 g/bhp-hr
emission level. The current verified technologies are listed below.
Please read the verification letter(s) below which provide additional
information on the applicability of the device for your particular
engine. Click on the associated attachment for each system to see a
list of engine families for which devices have been approved (engine
series names are provided for reference in most cases). For more
detailed information or to purchase the device, please contact the
device manufacturer directly. New information will be posted as
additional systems are verified. Please check periodically for updates. |
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The Air Resources Board conditionally verified the Caterpillar Diesel Particulate Filter (DPF) as a Level 3 passively regenerated diesel emission control system for use with rubber-tired off-road equipment powered by certain off-road diesel engines with model years between 1996 and 2008. Approved engines are certified to a particulate matter emission level equal to or less than 0.2 grams per brake horsepower-hour, are rated to at least 175 horsepower and up to 300 horsepower, and are not equipped with exhaust gas recirculation systems. The Caterpillar DPF uses a cordierite wall-flow filter with an upstream diesel oxidation catalyst for regeneration to achieve an 85 percent reduction in emissions of diesel particulate matter. Specific conditions for which the Caterpillar DPF has been approved may be found in the conditional verification letter below. |
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January 22, 2008 |
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March 7, 2008 |
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The Air Resources Board has extended the
on-road verification of the Cleaire Horizon Electric Particulate Filter
(Horizon). The Horizon is now 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. |
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June 12, 2007 |
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February 14, 2007 |
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December 7, 2005 |
EO DE-05-010 |
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The Air Resources Board
conditionally verified the Cleaire Horizon
Electric Particulate Filter for use with all off-road diesel engines
through the 2007 model year certified to a particulate matter emission
level equal to or less than 0.4 grams per brake horsepower-hour having
displacements up to 15 liters, except those equipped with either diesel
oxidation catalysts or exhaust gas recirculation systems. 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 conditional verification letter. |
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January
26, 2007 |
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The ARB verified the
Cleaire Longview system for specific
1993 through 2006 model year diesel engines used
with on-road applications operating on CARB diesel
fuel and biodiesel. The system employs a diesel particulate filter to achieve
at least 85 percent reduction of PM and a
lean NOx catalyst to achieve a 25 percent reduction of NOx.
Other conditions of verification that apply to these model years may be
found in the verification letters. The most current Executive Orders
are provided here. These supercede the previous verification letters
and include a list of all the
engine families for which the device has been
approved. |
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Cleaire Longview System Executive
Orders |
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March 5, 2008 |
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March 5, 2008 |
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October 19, 2007 |
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October 19, 2007 |
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July 26, 2004 |
DE-03-001-03 |
Attachment |
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July 26, 2004 |
DE-04-004-02 |
Attachment-Revised |
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The Air Resources Board conditionally verified the DCL MINE-X SOOTFILTER as a Level 3 passively regenerated diesel emission control system for use with model year 1996 through 2008 rubber tired off-road diesel engines with a rated power of less than 300 horsepower but not less than 175 horsepower certified to a particulate matter emission level equal to or less than 0.15 grams per brake horsepower-hour, except those equipped with exhaust gas recirculation systems. The MINE-X SOOTFILTER is a catalyzed, 2-stage diesel particulate filter system that achieves an 85 percent reduction in emissions of diesel particulate matter. Specific conditions for which the MINE-X SOOTFILTER has been approved may be found in the conditional verification letter below. |
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January 24, 2008 |
Verification Letter |
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Attachment |
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The ARB has verified
the Donaldson DPM diesel particulate
filter (DPF) muffler system with Series 6300 catalyst
formulation for specific 1993 through 2004 model year diesel engines
used with on-road applications operating on ultra low
sulfur diesel fuel. All of these engines are four-stroke,
medium and heavy heavy-duty diesel engines,
including turbo-charged, mechanically or electronically
injected, and are not equipped with exhaust gas recirculation.
The system employs a DPF to achieve at least an 85 percent
reduction of diesel particulate matter. The Executive Orders
below include restrictions for these verifications. The attachment
includes a list of engine families for which the device
has been approved. |
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Donaldson DPM DPF
Executive Orders |
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December 12, 2005 |
EO DE-04-005-02 |
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Attachment |
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September 30, 2004 |
EO DE-04-005-01 |
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Attachment |
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February 27, 2004 |
EO DE-04-005 |
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The ARB has verified
Engine Control
Systems Combifilter (Combifilter) for
2007 or older model year diesel engines used in off-road applications
operating on standard ultra low sulfur diesel fuel or bio-diesel (B20). The
Combifilter system employs an actively regenerated uncatalyzed diesel
particulate filter to achieve a 85 percent reduction in particulate
matter emissions, qualifying it for a Level 3 verification.
Specific engine families and conditions for which the Combifilter has
been approved may be found in the Executive Order below. |
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Engine Control
Systems' Combifilter Executive Order |
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April 24, 2007 |
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December
13, 2004 |
EO DE-04-012 |
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Attachment |
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The ARB has verified the Engine Control Systems Purifilter for specific 1994 through 2004 model year diesel engines used with on-road applications operating on CARB diesel or biodiesel (B20). All of these engines are four-stroke, medium and heavy heavy-duty diesel engines, including turbo-charged or naturally aspirated, mechanically or electronically injected, and are not equipped with exhaust gas recirculation. The Executive Orders include restrictions for these verifications and a list of applications and engine families for which the device has been approved and can be found here. |
Engine Control Systems' Purifilter L Executive Orders |
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January 12, 2004 |
EO DE-04-001 |
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Attachment |
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The ARB has verified
the Engine Control
Systems Purifilter for specific 1993
through 2006 model year diesel engines used with on-road
applications operating on CARB diesel or biodiesel (B20). All of these
engines are four-stroke, medium and heavy heavy-duty diesel
engines, including turbo-charged or naturally aspirated, mechanically
or electronically injected, and are not equipped with exhaust
gas recirculation. The Executive Orders include restrictions for these
verifications and a list of applications and engine families
for which the device has been approved and can be found here. |
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Engine Control
Systems' Purifilter H Executive Orders |
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January 9, 2008 |
EO DE-04-002-01 |
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Attachment |
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January 12, 2004 |
EO DE-04-002 |
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Attachment |
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The ARB has verified the HUSS Umwelttechnik
FS-MK diesel particulate filter as a Level 3 Plus diesel
emission control system for use with most on-road engines through 2006
model year, and off-road diesel engines through the 2007 model year,
except those equipped with either diesel oxidation catalysts or exhaust
gas recirculation systems. In addition, the HUSS FS-MK filter may also
be applied to off-road engines using diesel fuel that contains as much
as 20 percent biodiesel. The FS-MK series of filters uses a silicon
carbide wall-flow filter with a fuel burner for regeneration
to achieve an 85 percent reduction in particulate matter emissions.
Specific conditions for which the FS-MK has been approved may be found
in the Executive Orders.
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March 23, 2007 |
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November 13, 2006 |
EO DE-06-007 |
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Attachment 1 |
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November 13, 2006 |
EO DE-06-006 |
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Attachment 1 |
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The ARB has verified
the International Truck
& Engine Corporation DPX Catalyzed Soot
Filter System for 1994 2003 model year,
Navistar (International) diesel engines used in on-road applications
operating on ultra low sulfur diesel (ULSD) fuel. The DPX Catalyzed
Soot Filter System uses a catalyzed diesel particulate filter to
achieve a 85 percent reduction in particulate matter emissions
qualifying it for an Level 3 verification. Specific engine families and
conditions for which the DPX Catalyzed Soot Filter System have been
approved may be found in the Executive Order and Attachment posted
below. |
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June 17, 2005 |
EO DE-05-005 |
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Attachment |
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The Air Resources Board has verified the Johnson Matthey reformulated CRT™ Particulate Filter system for specific 1994 through 2006 model year diesel engines used in on-road applications. All of these engines are four-stroke, turbocharged, and were certified in California to the 0.1 gram per brake horsepower-hour (g/bhp-hr) particulate matter (PM) emission standard when new. The reformulated CRT™ Particulate Filter system employs a catalyst and a wall-flow diesel particulate filter with a back pressure monitor to achieve an 85 percent reduction in particulate matter emissions, qualifying it for Level 3 verification. Specific engine families and conditions for which the reformulated CRT ™ Particulate Filter system has been approved may be found in the Executive Order and attachment below. |
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June 15, 2007 |
EO DE-07-002 |
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Attachment |
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The ARB has verified
the Johnson Matthey Exhaust Gas
Recirculation Technology (EGRT ) for some Cummins,
Detroit Diesel, and International engines used in on-road applications.
The EGRT uses an exhaust gas recirculation system and a diesel
particulate filter to achieve an 85 percent reduction in particulate
matter emissions and 40 percent reduction in oxides of
nitrogen. Specific conditions for which the EGRT have been approved may
be found in the Executive Order and Attachment which are
posted below. |
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October 17, 2005 |
EO DE-05-004-01 |
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Attachment |
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April 15, 2005 |
EO DE-05-004 |
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