The highway and nonroad diesel programs do not require that refiners produce 15 ppm sulfur jet fuel and do not set sulfur limits for jet fuel that is not designated as motor vehicle diesel fuel. This would be their decision. EPA believes compatibility issues raised by 15 ppm jet fuel would be addressed by the refiners and customers involved.
This question and answer was originally posted on http://www.epa.gov/otaq/diesel/documents/420b06010.pdf.
Many refiners currently make a jet fuel meeting <500 ppm requirements. If refiners make a jet fuel meeting 15 ppm requirements, there may be compatibility (safety or performance) issues for jet engine manufacturers. Have these manufacturers been consulted
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