Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 23, 2004.
As of Sunday, May 19th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
See E.O.1982 through 2004 trucks and motorhomes equipped with a Ford 8 or 10 cylinder engine, excluding ULEVs and close coupled catalyst vehicles, and Chrysler trucks equipped with an 8 cylinder engine, excluding close coupled catalyst vehicles.The Exhaust Headers are manufactured out of 16 gage stainless steel or 14 gage mild steel. The Exhaust Header is a long tube design which may include a Y-pipe on applications for Ford trucks and engines. All emission components are retained in their original location.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-554-2
  • Executive Order 554-2 / D554-2
  • ARB # D-554-2
  • Executive Order No: D-554-2
  • C.A.R.B. No. D-554-2
  • Resolution D-554-2
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-554-2 PDF

D-554-2 Document:

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