Approval Details

Valid E.O.


This Executive Order approved the specified parts on on July 27, 2010.
As of Sunday, July 14th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

See PDF, 2010 and older applicable vehicles as listed in Exhibit A of Executive OrderThe Helix Power Tower is an aluminum spacer plate, approximately one inch thick with machined helical grooves on the inside ports, and is installed under the vehicleÔÇÖs throttle body or carburetor.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-676
  • Executive Order 676 / D676
  • ARB # D-676
  • Executive Order No: D-676
  • C.A.R.B. No. D-676
  • Resolution D-676
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-676 PDF

D-676 Document:

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