Approval Details

Valid E.O.


This Executive Order approved the specified parts on on December 18, 2001.
As of Friday, May 24th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

2002 and older model-year gasoline and diesel vehicles equipped with a metal fuel lineThe GENX2 is an add-on device that is attached to the fuel line in a motor vehicle

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-531
  • Executive Order 531 / D531
  • ARB # D-531
  • Executive Order No: D-531
  • C.A.R.B. No. D-531
  • Resolution D-531
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-531 PDF

D-531 Document:

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