Approval Details

Valid E.O.


This Executive Order approved the specified parts on on April 3, 1996.
As of Friday, May 24th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1995 and older model year vehicles. No adjustment to the emission related specifications: basic timing, idle air/ fuel ratio, and RPM Settings, choke settings, etc.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-398
  • Executive Order 398 / D398
  • ARB # D-398
  • Executive Order No: D-398
  • C.A.R.B. No. D-398
  • Resolution D-398
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-398 PDF

D-398 Document:

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