The California Air Resources Board is reminding model year 2006 transport refrigeration unit owners if they want to qualify for compliance extensions, only about three weeks remain before the purchase order deadline for ordering Level 3 verified diesel emissions control strategies, such as diesel particulate filters, for retrofitting engines.

Model year 2006 TRU and TRU generator set engines must comply with the CARB’s TRU regulations in-use performance standards by Dec 31. The TRU Regulation does not allow compliance extensions if orders for VDECS, such as Level 3 DPFs, are placed after Oct. 31 and installation is not completed by Dec. 31.

CARB notes if model 2006 TRU owners order Level 3 DPFs before the end of October, installation by the end of 2013 is very likely possible. More importantly, if you order a Level 3 DPF before Oct 31 and delivery or installation is delayed so that you can’t comply by the end of 2013, you may qualify for a compliance extension.

To qualify for compliance extension:

  • Purchase orders for Level 3 DPFs must be placed before Oct. 31
  • The TRU must be registered in CARB‚s Equipment Registration/ARBER system
  • An application for extension must be submitted to CARB with the required documentation before Dec 31.

Owners that place orders for Level 3 VDECS after Oct 31 will no qualify for this compliance extension if they discover they cannot comply by Dec. 31 due to delays in delivery or installation.

CARB says TRU replacement engines may still be available for delivery and installation by Dec. 31, if you order soon. However, the purchase order deadline for ordering replacement engines and units already passed on Aug. 31, therefore, if you ordered replacement engines or units after Aug. 31 and installation is delayed until after Dec. 31, you will not qualify for a compliance extension.

For general information about the TRU Regulation and VDECS information, visit:

If you have questions about compliance or registration you can call the CARB TRU Help Line at 1-888-878-2826 or 916-327-8737.