Approval Details

Valid E.O.


This Executive Order approved the specified parts on on August 4, 1993.
As of Wednesday, June 19th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1993 and older model-year gasoline engine vehicles.To be performed on intake manifolds, exhaust manifolds, and cylinder heads only

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-324
  • Executive Order 324 / D324
  • ARB # D-324
  • Executive Order No: D-324
  • C.A.R.B. No. D-324
  • Resolution D-324
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-324 PDF

D-324 Document:

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