California Air Resource Board TRU Compliance
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Transport Refrigeration Units (TRU) powered by diesel internal combustion engines have a potential for health risks to those that live and work nearby. Since diesel particulate matter (DPM) pollutant emissions have been identified as a toxic air contaminant, CARB adopted an Airborne Toxic Control Measure (ATCM) for TRUs on February 26, 2004, with amendments in 2010 and 2011.
These regulations could impact your business. You will find all of the latest CARB regulations links on this page
The State of California has recently placed additional emphasis on protecting local communities from the harmful effects of air pollution through the passage of Assembly Bill (AB) 617 (C. Garcia, Chapter 136, Statutes of 2017). AB 617 is a significant piece of air quality legislation that highlights the need for further emission reductions in communities with high exposure burdens. The new regulatory efforts go beyond the existing TRU ATCM to achieve greater emission reductions needed to minimize community exposure to air pollution, as well as meet air quality and climate mitigation goals. It is designed to reduce criteria pollutants, toxic air contaminants, greenhouse gas emissions, as well as community and regional air pollution.
Draft Regulatory Language
The new TRU Regulation addresses the increase in <25 horsepower units, includes refrigerant requirements, and suggests a transition to zero-emission technology, as well as increase the installation of electric fueling and charging infrastructure that will be needed for those technologies
Read the Full Proposed Regulation Here
Current Compliance Information
The public may use the Public TRU Search to search CARB’s Equipment Registration (ARBER) system to check the compliance status of TRUs and TRU generator sets. Report noncompliant TRUs to CARB's Complaint Hotline.