Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 19, 1998.
As of Tuesday, May 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1999 and older model year vehicles equipped with a gasoline powered engineDesigned to increase turbulence in the air intake system. Installed in either the air cleaner or intake tubing.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-400-3
  • Executive Order 400-3 / D400-3
  • ARB # D-400-3
  • Executive Order No: D-400-3
  • C.A.R.B. No. D-400-3
  • Resolution D-400-3
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-400-3 PDF

D-400-3 Document:

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