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arbcombo -- Global Emissions Systems, Inc. (GESi) Diesel Emissions Control Strategy Verified as a Level 3 Plus Device

Posted: 15 Aug 2011 15:58:15
The ARB has verified Global Emissions Systems, Inc. (GESi)
6000DPF diesel particulate filter (DPF) System as a Level 3 Plus
device for Tier 1, Tier 2, or Tier 3 certified off-road engines
used in stationary prime and emergency standby generators and
pumps. The GESi  6000DPF System reduces diesel particulate matter
by 85 percent or greater and does not increase nitrogen dioxide
(NO2) emissions beyond the 2009 limit of 20 percent of the
baseline oxides of nitrogen (NOX) emissions.  This verification
is subject to the terms and conditions specified in the
verification and only for use with engines listed in the engine
family list.  Since there may be significant variations from
application to application, GESi must review actual operating
conditions (duty cycle, baseline emissions, exhaust temperature
profiles, and engine backpressure) prior to retrofitting an
engine with a 6000DPF System to ensure compatibility. 

The GESi 6000DPF verification Executive Order can be accessed
through the following web link:


The GESi 6000DPF engine family list can be accessed through the
following link:


The GESi 6000DPF verification letter can be accessed through the
following link:


The GESi 6000DPF label can be accessed through the following


The Regulation for the Verification Procedure for In-Use
Strategies to Control Emissions from Diesel Engines was created
and adopted by our Board on May 16, 2002.  The goal of the
Verification Procedure is to ensure that verified systems produce
emissions reductions consistent with the verification level and
that they be durable and compatible with various engines and
applications.  Additional information on the regulation is
available at the following link:


If you have any questions regarding these verified devices,
please contact Kirk Rosenkranz at (916) 327-7843 or

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