Validity
This Executive Order approved the specified parts on on January 25, 2006.
As of Saturday, September 14th, 2024 this Executive Order has not been overturned or superceeded.
This Executive Order approved the specified parts on on January 25, 2006.
As of Saturday, September 14th, 2024 this Executive Order has not been overturned or superceeded.
Models | Modification |
---|---|
2003 and older on-road heavy-duty diesel engines certified to particulate matter emission standards of 0.60 g/bhp-hr or less and not otherwise equipped with an aftertreatment emission control system such as a catalytic converter or a particulate matter filter. | The AZ Purifier and AZ Purimuffler exempted under this Executive Order can be installed on engines operated using standard California diesel with a maximum sulfur content of 500 ppmw, ultra low sulfur diesel with a maximum sulfur content of 15 ppmw, or PuriNOx water emulsion fuel based on standard California diesel. |