Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 19, 1991.
As of Saturday, February 24th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1975 through 1980 model-year gasoline passenger cars vehicles equipped open-loop oxidation catalyst converter systems. (Up to 500 CID engine.)

This Executive Order may be listed as:
  • C.A.R.B.E.O. B-20
  • Executive Order 20 / D20
  • ARB # B-20
  • Executive Order No: B-20
  • C.A.R.B. No. B-20
  • Resolution B-20
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 B-20 PDF

B-20 Document:

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