Approval Details

Valid E.O.


This Executive Order approved the specified parts on on May 30, 1975.
As of Tuesday, May 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1974 and older, EXCEPT: (1) VW and Honda, (2) Vehicles equipped with capacitive discharge and transistorized ignition systems including breakerless types, (3) Vehicles with special ignition coils, (4) 1966-1970 vehicles with Air Quality Products, Carter, or Dana NOx retrofit device using electronic speed sensor

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-1-4
  • Executive Order 1-4 / D1-4
  • ARB # D-1-4
  • Executive Order No: D-1-4
  • C.A.R.B. No. D-1-4
  • Resolution D-1-4
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-1-4 PDF

D-1-4 Document:

Current View

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