Approval Details

Valid E.O.


This Executive Order approved the specified parts on on December 9, 1998.
As of Sunday, July 14th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
5300521996-99 5.0L C/K 1500/2500/3500, uses a 73 mm diameter supercharger pulleyThe WhippleCharger kit includes the following main components: Twin Screw supercharger, auxiliary fuel pump, and uses the stock closed element air cleaner. The following engine families certified to a Low Emission Vehicle (LEV) standard, are excluded for this Executive Order: WGMXA05.7185, WGMXA05.7186, XGMXA05.7186, XGMXA05.7185, XGMXA05.3183, and XGMXA05.3185

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-231-12
  • Executive Order 231-12 / D231-12
  • ARB # D-231-12
  • Executive Order No: D-231-12
  • C.A.R.B. No. D-231-12
  • Resolution D-231-12
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-231-12 PDF

D-231-12 Document:

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