Approval Details

Valid E.O.


This Executive Order approved the specified parts on on April 28, 1998.
As of Friday, April 19th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
5462, Universal Boost Timing Mas1995 and older vehiclesExcluding OBD II vehicles

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-40-28
  • Executive Order 40-28 / D40-28
  • ARB # D-40-28
  • Executive Order No: D-40-28
  • C.A.R.B. No. D-40-28
  • Resolution D-40-28
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-40-28 PDF

D-40-28 Document:

Current View

Previous E.O. D-40-27 | Previous E.O. D-39 | Next E.O. D-40-29 | Next E.O. D-41