Approval Details

Valid E.O.


This Executive Order approved the specified parts on on February 10, 1993.
As of Tuesday, June 25th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1986-1987 model-year Buick Grand National, Regal Turbo, and GNX passenger cars equipped with a 231 CID V6 turbocharged engine.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-304
  • Executive Order 304 / D304
  • ARB # D-304
  • Executive Order No: D-304
  • C.A.R.B. No. D-304
  • Resolution D-304
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-304 PDF

D-304 Document:

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