Validity
This Executive Order approved the specified parts on on August 6, 2002.
As of Monday, October 7th, 2024 this Executive Order has not been overturned or superceeded.
This Executive Order approved the specified parts on on August 6, 2002.
As of Monday, October 7th, 2024 this Executive Order has not been overturned or superceeded.
Models | Modification |
---|---|
1996-2002 model-year Power Systems Associates, LLC. original equipment-certified natural gas/diesel bi-fuel heavy-duty engines | The exemption is valid provided that the bi-fuel engines operate at an exhaust temperature greater than or equal to 225 degrees Celsius for 40-50 percent of the duty cycle. The engines can be operated using standard diesel with a maximum sulfur content of 500 ppmw. |