Approval Details

Valid E.O.


This Executive Order approved the specified parts on on April 25, 1977.
As of Saturday, February 4th, 2023 this Executive Order has not been overturned or superceeded.

Approved Parts

1977 and older vehicles, EXCEPT: (1) Vehicles with three-way catalyst (2) Fuel injected vehicles (3) Chrysler lean burn

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-26-4
  • Executive Order 26-4 / D26-4
  • ARB # D-26-4
  • Executive Order No: D-26-4
  • C.A.R.B. No. D-26-4
  • Resolution D-26-4
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-26-4 PDF

D-26-4 Document:

Current View

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