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tru -- ARB advises TRU (reefer) owners about end of the engine repower in-use compliance option Posted: 24 Mar 2014 09:33:46
Transport refrigeration unit (TRU) owners need to be aware that the engine repower compliance option will cease to exist for model year 2008 and newer TRU engines after the end of 2014. Repowering a TRU ceases to qualify as a compliance option when the replacement engine is no cleaner than the engine being replaced. Title 13 California Code Regulations section 2477.5(i) stipulates that a replacement engine shall meet a more stringent emissions standard than the original engine. Examples follow: 1. Model year (MY) 2008 through 2012 Tier 4i in-use engines rated at 25-50 horsepower (hp) used in trailer TRUs or TRU generator sets: The only replacement engine that is known to fit and perform is another Tier 4i replacement engine, which does not result in a cleaner replacement engine. Therefore, the repower compliance option for 25-50 hp trailer TRU and TRU gen set engines fails to qualify for MY 2008 through 2012 Tier 4i engines that need to comply with the in-use performance standards seven years after the engine model year or effective model year. 2. MY 2008 and newer Tier 4f in-use engines rated at less than 25 hp in truck TRUs: The only replacement engine that is known to fit and perform is another Tier 4f less than 25 hp replacement engine, which does not result in a cleaner replacement engine. Therefore, the repower compliance option for less than 25 hp truck TRU engines fails to qualify for MY 2008 and newer Tier 4f engines that need to comply with the in-use performance standards seven years after the engine model year or effective model year. A Q&A to this effect has been added to TRU Advisory 13-18 at: http://www.arb.ca.gov/diesel/tru/documents/advisory_13_18.pdf . It should also be noted that the repower compliance option is not very attractive for MY 2007 trailer TRU engines that must comply by the end of 2014 because this only results in about five years of compliance before the ULETRU in-use performance standard has to be met. For example, if a trailer TRU has an MY 2007 original engine that must comply by December 31, 2014, and the owner chooses to repower the TRU with a Tier 4i replacement engine, the effective model year of the replacement engine is 2012 (the last year that tier 4i was in effect), and compliance with ULETRU in-use standard would then be required by December 31, 2019 (seven years after the effective model year). In this example, the operational life of the replacement engine would only be about five years (late 2014 to December 31, 2019). This example is also included in the updated TRU Advisory 13-18 (starts at the bottom of page 2). Retrofitting with a Level 3 Verified Diesel Emissions Strategy (VDECS) may be something to consider because Level 3 VDECS meet the TRU Regulationís ULETRU In-Use Performance Standard. 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 TRU Advisories are listed at: http://www.arb.ca.gov/diesel/tru/advisories.htm 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 Sign up for the TRU List Serve at: http://www.arb.ca.gov/listserv/listserv_ind.php?listname=tru If you have questions about in-use performance standard 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. California is in a drought emergency. Visit www.SaveOurH2O.org for water conservation tips.