Approval Details

Valid E.O.


This Executive Order approved the specified parts on on June 20, 1974.
As of Sunday, July 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
5001974 and older vehicles equipped with 12-volt negative ground batteriesexcept for 1973-1974 Mercedes Benz , Mazda, Audi and Porsche vehicles, all General Motor vehicles equipped with an ignition coil intergrated into the distributor and all 1966-1970 vehicles equipped with a Dana or carter Nox retrofit device using an electronic speed sensor

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-20-1
  • Executive Order 20-1 / D20-1
  • ARB # D-20-1
  • Executive Order No: D-20-1
  • C.A.R.B. No. D-20-1
  • Resolution D-20-1
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-20-1 PDF

D-20-1 Document:

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