Approval Details

Valid E.O.


This Executive Order approved the specified parts on on February 10, 1999.
As of Sunday, July 14th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1987 through 1995 General Motors trucks or truck engines equipped with a throttle body injection (TBI) system and a V6 or V8 engineThe Air Cleaner Housing is comprised of a reusable open element filter placed between a metal top and bottom. No engine sensors are moved or modified with the addition of the Cold Air Induction System.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-477-1
  • Executive Order 477-1 / D477-1
  • ARB # D-477-1
  • Executive Order No: D-477-1
  • C.A.R.B. No. D-477-1
  • Resolution D-477-1
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-477-1 PDF

D-477-1 Document:

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