Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 19, 2012.
As of Thursday, September 21st, 2023 this Executive Order has not been overturned or superceeded.

Approved Parts

1994-2006 diesel engines with displacements up to 12 liters and horsepower ratings from 100 to 400, excluding all engines originally equipped with an aftertreatment emission control system such as a diesel oxidation catalyst or a diesel particulate filterThis exmeption is only valid provided the engines meet the following operating conditions: (1) the engine exhaust temperature is above 260 degrees Celsius for at least 30 percent of the typical duty cycle and (2) the engine is operated using ultra low sulfur diesel with a maximum sulfur content of 15 parts per million by weight or biodiesel blends containing no more than 20 percent biodiesel by volume.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-535-18
  • Executive Order 535-18 / D535-18
  • ARB # D-535-18
  • Executive Order No: D-535-18
  • C.A.R.B. No. D-535-18
  • Resolution D-535-18
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-535-18 PDF

D-535-18 Document:

Current View

Previous E.O. D-535-17 | Previous E.O. D-534 | Next E.O. D-535-19 | Next E.O. D-536