Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 18, 1993.
As of Monday, April 15th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1993 and older model-year Ford light-duty trucks, medium duty vehicles, and heavy duty engines operating on CNG and utilizing Impco or Impco-compatible feedback controlled conversion systems.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-261-3
  • Executive Order 261-3 / D261-3
  • ARB # D-261-3
  • Executive Order No: D-261-3
  • C.A.R.B. No. D-261-3
  • Resolution D-261-3
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-261-3 PDF

D-261-3 Document:

Current View

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