Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 26, 1974.
As of Sunday, December 16th, 2018 this Executive Order has not been overturned or superceeded.

Approved Parts

1976 and older vehicles, EXCEPT GM vehicles with HEI

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-23-1
  • Executive Order 23-1 / D23-1
  • ARB # D-23-1
  • Executive Order No: D-23-1
  • C.A.R.B. No. D-23-1
  • Resolution D-23-1
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-23-1 PDF

D-23-1 Document:

Current View

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