Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 16, 2002.
As of Sunday, July 14th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

2003 and older model-year gasoline and diesel vehiclesThe ECOMAX is an electromagnetic device that emits a magnetic signal around the vehicle's fuel line prior to combustion. Installation requires attaching the ECOMAX to the fuel line using zip ties. Use of the device does not require any other alterations to the vehicle's emission control system.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-548
  • Executive Order 548 / D548
  • ARB # D-548
  • Executive Order No: D-548
  • C.A.R.B. No. D-548
  • Resolution D-548
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-548 PDF

D-548 Document:

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