Approval Details

Valid E.O.


This Executive Order approved the specified parts on on February 19, 1997.
As of Sunday, July 14th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1997 and older model year heavy duty diesel powered vehicles

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-383
  • Executive Order 383 / D383
  • ARB # D-383
  • Executive Order No: D-383
  • C.A.R.B. No. D-383
  • Resolution D-383
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-383 PDF

D-383 Document:

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