Approval Details

Valid E.O.


This Executive Order approved the specified parts on on February 28, 1974.
As of Sunday, July 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1973-1974 Mercedes Benz, Mazda , Audi and Porsche vehicles, all General Motor Corporation vehicles equipped with an integrated coil and distributor, and those 1966-1970 vehicles equipped with incompatible Nox retrofit systems such as the Fana and Carter devices witch employ electronic speed sensors. The device consists of a d-c to d-c converter, capacitor, and silicon controlled rectifier electronic switch.

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

D-20 Document:

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