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The California Air Resources Board has conditionally verified the
Carrier Transicold EES as a Level 3+ Diesel Emission Control
Strategy. 

Carrier Transicold’s Engine Emissions System (EES) has been
conditionally verified as a Level 3 Plus diesel emission control
strategy for certain transport refrigeration units (TRU).  Level
3 Plus means the EES reduces particulate matter (PM) emissions by
85 percent or more without increasing NO2 emissions more than 20
percent of NOx.  A conditional verification is equivalent to
verification for the purposes of satisfying the requirements of
in-use emission control regulations and allows Carrier Transicold
to begin marketing and selling the EES while the final details of
verification are completed.

The Carrier EES is conditionally verified for use on Carrier
X4-7300 and 7500 TRUs, Vector 8500 and 8600MT TRUs, and Carrier
UG and RG TRU generator sets equipped with model year 2012, 2013,
and 2014 Kubota model V2203L-DI-EF01e engines rated at less than
25 horsepower.

In-use TRU engines must have less than 3,000 hours of operation
at time of installation.  New TRUs may be retrofit with the
Carrier EES concurrent with sale or lease.

The Carrier EES uses an automatic filter regeneration system to
oxidize the collected diesel soot and control engine backpressure
to within the engine manufacture’s specifications.  The
regeneration system uses an engine intake air control valve, a
diesel fuel doser, an oxidation catalyst, and a catalyzed silicon
carbide wall-flow filter with an electronic control unit to
achieve backpressure control.  

Specific conditions for which the Carrier EES has been
conditionally approved may be found in ARB’s Verification Letter
on the ARB's Verification Procedure website under the Carrier EES
product name within the next week. See Carrier Transicold’s True
Power of Blue webpage for more information at: 
http://www.truepowerofblue.com/.

Where can I get more information?

For general information about the TRU Regulation, the TRU Website
is at:  http://www.arb.ca.gov/diesel/tru/tru.htm

ARB’s Verification Procedure Website is at:
http://www.arb.ca.gov/diesel/verdev/verdev.htm

If you have questions about TRU compliance or registration in
ARBER, please call the TRU Help Line at 1-888-878-2826 or call
1-916-327-8737.

Background:  TRUs are refrigeration systems powered by integral
diesel internal combustion engines designed to control the
environment of temperature-sensitive products that are
transported in trucks, trailers, shipping containers, and
railcars.  The emissions from these units are a source of
unhealthful air pollutants including particulate matter, toxic
air contaminants, nitrogen oxides, carbon monoxide, and
hydrocarbons, that all pose a potential threat to both public
health and the environment. These units often congregate in large
numbers at California distribution centers, grocery stores, and
other facilities where they run for extended periods of time to
ensure their perishable contents remain cold or frozen. These
distribution and loading facilities are often in close proximity
to schools, hospitals, and residential neighborhoods.  In 2004,
the TRU Airborne Toxic Control Measure (ATCM) was adopted by the
Board to reduce diesel particulate matter emissions from TRUs and
TRU gen set engines.  Amendments were adopted by the Board in
November 2010 and October 2011.