Approval Details

Valid E.O.


This Executive Order approved the specified parts on on August 17, 1992.
As of Monday, July 22nd, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1989-1992 BMW 535i 1988-1989 BMW 635Csi and L6 1988-1992 BMW 735i and 735iLLonger PCV tubing, replace air cleaner assembly, relocate oxygen sensor from catalytic converter to exhaust manifold, and replacement with BMW 8:1 compression ratio pistons

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-176-4
  • Executive Order 176-4 / D176-4
  • ARB # D-176-4
  • Executive Order No: D-176-4
  • C.A.R.B. No. D-176-4
  • Resolution D-176-4
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-176-4 PDF

D-176-4 Document:

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