Validity
This Executive Order approved the specified parts on on July 18, 2011.
As of Friday, October 11th, 2024 this Executive Order has not been overturned or superceeded.
This Executive Order approved the specified parts on on July 18, 2011.
As of Friday, October 11th, 2024 this Executive Order has not been overturned or superceeded.
Models | Modification | Remarks |
---|---|---|
1994-2006 5.9-16 liter diesel engines | This exemption excludes all engines originally equipped with an aftertreatment emission control system such as a catalytic converter or a diesel particulate filter. | This exemption is valid provided the engines meet the following operating conditions: (1) the engine exhaust temperature is greater than 260 degrees Celsius for at least seven (7) percent of the typical duty cycle and (2) the engine is operated using ultra low sulfur diesel with a maximum sulfur content of 15 ppmw or biodiesel blends containing no more than 20 percent biodiesel by volume. |