Approval Details

Valid E.O.


This Executive Order approved the specified parts on on August 23, 2000.
As of Friday, May 24th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

2000 and older model year vehicles

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-504
  • Executive Order 504 / D504
  • ARB # D-504
  • Executive Order No: D-504
  • C.A.R.B. No. D-504
  • Resolution D-504
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-504 PDF

D-504 Document:

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