Attention TRU (reefer) Owners! The August 31st Purchase Order Deadline Is only Two Weeks Away!

Order compliance technology now for your 2008 transport refrigeration units (TRU or reefer) to beat the purchase order deadlines.

August 31st is the purchase order deadline for new replacement TRUs and TRU generator sets. Order now to avoid penalties due to manufacturer or installer delay. Model year 2008 engines/units must meet the TRU Regulation’s in-use performance standards by December 31, 2015. It is probably too late to order refrigerated trailers due to long backlogs at refrigerated trailer manufacturers.

The California Air Resources Board (ARB) recommends that TRU and TRU generator set owners take action now to order compliance options to ensure TRU model year 2008 engines (or units manufactured in 2008) comply with in-use performance standards by the end of 2015. Please be aware that replacement engines may no longer be a compliance option because replacement engines must be cleaner than the old engine being replaced and there is no replacement engine that fits and functions that is cleaner than an MY 2008 engine (see TRU Advisory 13-18, page 7 for more detailed explanation at:

The TRU Regulation allows compliance extensions if delivery or installation is delayed; but, to qualify for these extensions, the unit must be registered in ARB’s Equipment Registration (ARBER) system and purchase orders must be placed early enough to take into account long order backlogs, delivery, installation, holiday, and the typical year-end compacted schedules. The TRU Regulation has the following purchase order deadlines:

  • For engine replacements and unit replacements: By the end of August — four months ahead of the compliance deadline; and
  • For verified diesel particulate filter retrofits: By the end of October — two months ahead of the compliance deadline.

Owners must exercise due diligence in attempting to comply by the end of 2015. Due diligence means conducting the compliance process with a measure of prudence, responsibility, and diligence that is expected from, and ordinarily exercised by a reasonable and prudent person under the circumstances. For example, start the research, budgeting, and financing well in advance of the compliance deadline, and purchase the compliance technology before the purchase order deadline. The compliance extension application (with attached supporting documentation that demonstrates due diligence was used) must be received at ARB by December 31, 2015.

All model year 2007 and older engines (or units manufactured in 2007 or earlier) should be in compliance now. Please note that trailer manufacture year and in-service dates are not used to determine compliance dates. Noncompliant model year 2007 and older TRU/TRU genset engines/units must not be operated in California unless they are brought into compliance immediately.

Where can I get more information?

For general information about the TRU Regulation, the TRU Website is at:

The ARBER registration website is at:

ARBER Registration Help pages are at:

TRU Compliance extension applications are at:

TRU Advisories are listed at:

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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