Approval Details

Valid E.O.


This Executive Order approved the specified parts on on January 27, 2011.
As of Sunday, May 19th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1994-2006 4-stroke, turbocharged diesel engines with horsepower ratings between 100 and 950; the engines must be certified to 0.10 g/bhp-hr or lower PM standardThe exemption applies to engines originally certified with a diesel oxidation catalyst but does not apply to any engines originally certified with other after treatment emission control systems such as a diesel particulate filter or a selective catalytic reduction system. The exemption is valid provided the engines meet the following operating conditions: (1) the engine exhaust temperature is greater than 200 degrees Celsius for at least 15 percent of the typical duty cycle and (2) the engine is operated using ultra-low sulfur diesel with maximum sulfur content of 15 part per million by weight.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-679-1
  • Executive Order 679-1 / D679-1
  • ARB # D-679-1
  • Executive Order No: D-679-1
  • C.A.R.B. No. D-679-1
  • Resolution D-679-1
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-679-1 PDF

D-679-1 Document:

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