Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 9, 2009.
As of Sunday, July 14th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

On-road heavy-duty vehicles equipped with 1994 through 2006 model-year diesel engines with displacements from 5 to 15 liters and power ratings up to 400 horsepower for all duty cycles and up to 500 horsepower provided the engine exhaust temperature is less than 260 degrees Celsius for greater than 40 percent of the typical duty cycleThis exemption does not apply to any engines originally 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-535-8
  • Executive Order 535-8 / D535-8
  • ARB # D-535-8
  • Executive Order No: D-535-8
  • C.A.R.B. No. D-535-8
  • Resolution D-535-8
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-535-8 PDF

D-535-8 Document:

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