Approval Details

Valid E.O.


This Executive Order approved the specified parts on on March 29, 1993.
As of Saturday, September 30th, 2023 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
WI-TEC S3116-93-4A1988-1993 GM S-10 model trucks with 4.3L engines

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-231-3
  • Executive Order 231-3 / D231-3
  • ARB # D-231-3
  • Executive Order No: D-231-3
  • C.A.R.B. No. D-231-3
  • Resolution D-231-3
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-231-3 PDF

D-231-3 Document:

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