Approval Details

Valid E.O.


This Executive Order approved the specified parts on on July 27, 1998.
As of Friday, May 24th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1980-87 Detroit Diesel 6V92TA equipped with a mechanical fuel injection, 1988-90 6L71TA equipped with a mechanical fuel injection, and 1987 and older 8V92TA equipped with a mechanical fuel injection. 6V92TA engines with electronically controlled fuel injection system are excluded.The kit includes a new set of fuel injectors & nozzles, a fuel pump, and an oxidation catalytic converter. The kit is designed to convert a diesel engine to operate on A-55 fuel, a naphtha-water fuel

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-457
  • Executive Order 457 / D457
  • ARB # D-457
  • Executive Order No: D-457
  • C.A.R.B. No. D-457
  • Resolution D-457
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-457 PDF

D-457 Document:

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