Validity
This Executive Order approved the specified parts on on December 10, 2002.
As of Thursday, November 28th, 2024 this Executive Order has not been overturned or superceeded.
This Executive Order approved the specified parts on on December 10, 2002.
As of Thursday, November 28th, 2024 this Executive Order has not been overturned or superceeded.
Models | Modification | Remarks |
---|---|---|
1994-2002 model-year Cummins L10, M11, N14, ISB, ISC, ISL, ISM, ISN, ISX, Signature, B-series, and C-series heavy-duty diesel engines. This exemption excludes all engines originally certified with an aftertreatment emission control system such as an oxidation catalyst that would require removal before the EGRT Diesel Emission Reduction System can be installed. | The system includes a low-pressure exhaust gas recirculation system and the Continuously Regenerating Technology Particulate Filter. | This exemption is only valid provided the engines meet the following operating conditions: (1) the engine exhaust temperature is greater than or equal to 260 degrees Celsius for 40 percent of the typical duty cycle, (2) the NOx to PM ratio is at least 20, and (3) the engine is operated using diesel with a maximum sulfur conent of 50 parts per million by weight. |