Approval Details

Valid E.O.


This Executive Order approved the specified parts on on February 14, 2002.
As of Friday, May 24th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
See E.O.2002 Caterpillar 3208, 3116, 3126, 3306, 3406, C10, C12, C15, C16Exemption is only valid when engines are operated using diesel fuel with maximum sulfur content of 50 ppmw.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-393-4
  • Executive Order 393-4 / D393-4
  • ARB # D-393-4
  • Executive Order No: D-393-4
  • C.A.R.B. No. D-393-4
  • Resolution D-393-4
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-393-4 PDF

D-393-4 Document:

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