Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 13, 2007.
As of Monday, May 27th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1996-2006 model-year off-road diesel engines of 20.0 liters or less displacementThis exemption is only valid provided the engines meet the following operating condition: the engine exhaust temperature is between 280 and 320 degrees Celsius for at least 25 percent of the typical duty cycle. The engines can be operated on California diesel (15 ppm sulfur), PuriNOx water emulsion fuel based on California diesel, or biodiesel blends containing no more than 20 percent biodiesel by volume.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-420U-13
  • Executive Order 420U-13 / D420U-13
  • ARB # D-420U-13
  • Executive Order No: D-420U-13
  • C.A.R.B. No. D-420U-13
  • Resolution D-420U-13
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-420U-13 PDF

D-420U-13 Document:

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