Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 11, 1995.
As of Saturday, February 24th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

The following vehicles equipped with 5.7L LT-1 gasoline engine EXCEPT those vehicles certified to the 1995 model year primary standards (0.25 g/mile NMHC standard at 50,000 miles): 1. 1992 -1995 Chevrolet Corvettes 2. 1993 -1995 Chevrolet Camaros 3. 1993 -1995 Pontiac Firebirds and Trans Ams 4. 1994 -1995 Chevrolet Impala SS and other GM B-Body vehiclesIncludes new fuel injectors, pistons, connecting rods, crankshaft, camshaft, after catalyst exhaust system, and re-worked cylinder heads, intake manifold, intake runners, and PROM chip.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-333-4
  • Executive Order 333-4 / D333-4
  • ARB # D-333-4
  • Executive Order No: D-333-4
  • C.A.R.B. No. D-333-4
  • Resolution D-333-4
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-333-4 PDF

D-333-4 Document:

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