Approval Details

Valid E.O.


This Executive Order approved the specified parts on on May 12, 1993.
As of Sunday, June 16th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
98201993 and older model-year passenger cars, light-duty trucks, medium-duty vehicles, and heavy-duty engines operating on CNG and utilizing an Impco conversion system

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-315-1
  • Executive Order 315-1 / D315-1
  • ARB # D-315-1
  • Executive Order No: D-315-1
  • C.A.R.B. No. D-315-1
  • Resolution D-315-1
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-315-1 PDF

D-315-1 Document:

Current View

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