Validity
This Executive Order approved the specified parts on on November 21, 2002.
As of Friday, December 27th, 2024 this Executive Order has not been overturned or superceeded.
This Executive Order approved the specified parts on on November 21, 2002.
As of Friday, December 27th, 2024 this Executive Order has not been overturned or superceeded.
Models | Modification | Remarks |
---|---|---|
2002 model-year Cummins ISX heavy-duty diesel engines | This exemption applies to engines originally certified with an exhaust gas recirculation system. | This exemption is only valid provided the engines meets the following operating conditions: (1) the engine exhaust temperature is greater than or equal to 225 degrees Celsius for 40-50 percent of the duty cycle and (2) the engine is operated using diesel fuel with a maximum sulfur content of 50 parts per million by weight. |