Approval Details

Valid E.O.


This Executive Order approved the specified parts on on February 6, 2012.
As of Sunday, May 19th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1988-2006 model-year on-road heavy-duty diesel enginesThe covered engines are 4-stroke turbocharged or naturally-aspirated engines rated between 150 and 600 horsepower and certified to particulate matter emission standards of 0.60 g/bhp-hr or less and not otherwise equipped with an aftertreatment emission control system such as a catalytic converter or a diesel particulate filter.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-393-17
  • Executive Order 393-17 / D393-17
  • ARB # D-393-17
  • Executive Order No: D-393-17
  • C.A.R.B. No. D-393-17
  • Resolution D-393-17
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-393-17 PDF

D-393-17 Document:

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