TRU ATCM Advisories

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Transport Refrigeration Unit (TRU) Airborne Toxic Control Measures (ATCM) advisories are published as needed to clarify the TRU ATCM and CARB policies as they relate to the TRU ATCM.  New advisories are distributed electronically, subscribe to the TRU ATCM govdelivery.

For more information, please contact the Air Resources Board Equipment Registration (ARBER) Help Line at 888-878-2826.

Advisory Number*

Last 
Revision

Title

22-30September 20222022 Amendments to the TRU ATCM (Español)
18-29December 2018Four‐Month Compliance Extension Option for Transport Refrigeration Units (TRU) in the Process of Installing a Huss Diesel Particulate Filter (DPF) (Español)
13-28August 2013Operator Reporting Requirements for Terminal Operators
13-27April 2013Engine Rebuilder Requirements (Español)
13-26February 2013TRU Dealer Requirements
13-25February 2013Enforcement of Broker-Shipper-Receiver-Carrier-Driver Requirements (Español)
12-24March 2014Before Purchasing TRUs Equipped with Flexibility Engines, Understand the Consequences (Español)
12-23September 2012Prohibitions of Sale of Noncompliant TRUs and Engines (Español)
12-22September 2012Compliance Requirements for Model Year 2008 and Newer TRU Engines Rated at Less Than 25 HP (Español)
12-21August 2012Mobile Catering Company Exemptions
10-20January 20112010 Amendments to the TRU ATCM (Español)
10-19January 2011Changes to Compliance Requirements for Model Year 2003 TRU Engines (Español)
13-18August 2013Compliance with the TRU Regulation by Repowering with New or Rebuilt Replacement Engines (Español)
09-17April 2013Compliance Requirements for TRUs Based Outside California (Español)
08-16April 2013TRU ATCM Requirements for Banks and Financial Institutions
08-15January 2011Revised Enforcement Schedule for TRU In-Use Performance Requirements and TRU Registration (Español)
08-14January 2011GTL Synthetic Diesel Fuel
08-13January 2011Hybrid Cryogenic Temperature Control System Compliance Option
08-12July 2013ULETRU Compliance Extension Awarded for Early LETRU Compliance
08-10January 2011Affixing or Painting ARB Identification Numbers on TRUs (Español)
08-09January 2011No Low-Use Exemption or Non-Operational TRUs (Español)
08-08January 2011Biodiesel (Español)
08-07January 2011Flexibility Engines - Retrofit with VDECS
08-06April 2013TRU ATCM Application Information for Identification Numbers (Español)
08-05Deleted 02-12-13Using Rebuilt/Remanufactured Engines for TRU ATCM Compliance - Superceded by Advisory 13-27
08-04April 2013TRU ATCM Requirements for Leased/Rented TRUs (Español)
08-03January 2011Use of BIC-Codes, and Recording Marks in Place of ARB Identification Numbers
08-02Deleted 11-16-12Electric Standby/Hybrid Electric Compliance Option - Replaced by Regulatory Guidance (Español) and ETS Supplier List
08-01January 2011Use of Model Year to Determine Compliance Date (Español)
05-01January 2011TRU Regulatory Advisory
420September 2010DECS (Retrofit) Component Swapping and Redesignation