Validity
This Executive Order approved the specified parts on on October 22, 2002.
As of Thursday, December 5th, 2024 this Executive Order has not been overturned or superceeded.
This Executive Order approved the specified parts on on October 22, 2002.
As of Thursday, December 5th, 2024 this Executive Order has not been overturned or superceeded.
Models | Modification | Remarks |
---|---|---|
1991-2002 model-year Caterpillar 3116, 3126, 3208, 3306, 3406, C10, C12, C15, and C16 heavy-duty diesel engines | This exemption applies to 1991-2002 model-year 4-stroke heavy-duty diesel engines originally certified to meet a particulate matter emission standard of 0.10 g/bhp-hr or lower. This exemption excludes engine equipped with an exhaust gas recirculation system. | This exemption is only valid provided the engines meet 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. |