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The California Air Resources Board (ARB) recommends that
refrigerated carriers that own transport refrigeration units (TRU
or reefer) that must comply with the TRU Regulation’s in-use
performance standards by the end of 2014 need to begin planning
compliance strategies and budgets now. 

Model year (MY) 2007 TRU engines must comply with the TRU
Regulation’s in-use standards by December 31, 2014.  Purchase
orders for compliance equipment (e.g. trailers, units, or
engines) or technology (e.g. diesel particulate filters) must be
placed before the TRU Regulation’s purchase order deadlines to
qualify for a compliance extension if delivery or installation is
delayed until after December 31, 2014.  To qualify for this
compliance extension, the TRU must be registered in ARB’s
Equipment Registration (ARBER) system, purchase orders must be
placed before the purchase order deadlines, and compliance
extension applications must be submitted by December 31st.

The purchase order deadlines that apply to TRUs are:
•	For reefer trailers, TRU replacements, and TRU engine
replacements:  August 31st  (four months ahead of the compliance
deadline); and
•	For verified diesel particulate filter retrofits:  October 31st
  (two months ahead of the compliance deadline).

If purchase orders are placed before the purchase order deadline
and in-use compliance cannot be achieved by December 31, 2014,
due to delays in delivery or installation, the TRU/reefer owner
may apply for a compliance extension.  A compliance extension
application, with attached supporting documentation, must be
submitted to ARB by December 31, 2014.

All MY 2006 and older TRU engines (or units manufactured in 2006
or earlier) should be in compliance now.  Please note that
trailer manufacture year and in-service dates are not used to
determine TRU compliance dates.  Noncompliant MY 2006 and older
TRU engines/units must not be operated in California unless they
are brought into compliance immediately.

BE AWARE!
The replacement engine compliance option for trailer TRUs no
longer results in a full seven years of compliance until ULETRU
is required.  The replacement engine models that will fit and
perform in trailer TRUs are Tier 4i engines.  Since Tier 4i is no
longer in effect, the effective MY of a Tier 4i replacement
engine is 2012, so compliance with the Ultra-Low-Emission TRU
(ULETRU) in-use performance standard is still required by
December 31, 2019 (seven years after the effective model year). 
This results in only 5 years of compliance before ULETRU is
required.

Retrofitting with a Level 3 Verified Diesel Emissions Strategy
(VDECS) may be something to consider because Level 3 VDECS meets
the TRU Regulation’s ULETRU In-Use Performance Standard.  There
is no more-stringent in-use standard than ULETRU, but you need to
understand that more emissions-related engine maintenance is
needed to ensure reliable operation with a DPF (e.g. periodically
check fuel injectors pop pressure and spray pattern, check fuel
pump, check engine intake and exhaust valves).  Diesel
particulate filters are NOT “fit-and-forget” systems.

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

Information about Level 3 VDECS is at:
http://www.arb.ca.gov/diesel/tru/tru.htm#mozTocId341892

The ARBER registration website is at: 
http://www.arb.ca.gov/arber/arber.htm

ARBER Registration Help pages are at: 
http://www.arb.ca.gov/arber/trureg/trureg.htm

TRU Advisories are listed at: 
http://www.arb.ca.gov/diesel/tru/advisories.htm

TRU Compliance extension applications are at:
http://www.arb.ca.gov/arber/trureg/truextensions.htm

If you have questions about in-use performance standard
compliance, registration in ARBER, or in-use compliance
extensions, 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.



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