Approval Details

Valid E.O.


This Executive Order approved the specified parts on on January 15, 1998.
As of Wednesday, May 31st, 2023 this Executive Order has not been overturned or superceeded.

Approved Parts

1998 and older model year heavy duty diesel vehicles

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-394-1
  • Executive Order 394-1 / D394-1
  • ARB # D-394-1
  • Executive Order No: D-394-1
  • C.A.R.B. No. D-394-1
  • Resolution D-394-1
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-394-1 PDF

D-394-1 Document:

Current View

Previous E.O. D-394 | Previous E.O. D-393 | Next E.O. D-394-2 | Next E.O. D-395