Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 20, 1971.
As of Sunday, July 14th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1970 and older vehicles with engine > 250 CID

This Executive Order may be listed as:
  • C.A.R.B.E.O. 71-28-A
  • Executive Order -28-A / D28-A
  • ARB # 71-28-A
  • Executive Order No: 71-28-A
  • C.A.R.B. No. 71-28-A
  • Resolution 71-28-A
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 71-28-A PDF

71-28-A Document:

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