- TxLED
Texas Low Emission Diesel standards are rules regulating the quality of
diesel fuel s, intended to reduce pollutants (especiallyNOx ). Since Oct. 31, 2005, diesel fuel to be consumed by mobile sources in the 110 affected counties in Eastern Texas must meet these requirements:1) Maximum
aromatic hydrocarbon content of 10% by volume.2) Minimumcetane number of 48.3) Sulfur content less than 15 parts per million.Alternatively, diesel fuel that complies with the specifications of a
California Air Resources Board (CARB) certified alternative diesel formulation that was approved by CARB before January 18, 2005 may be used, as can fuel approved by theTexas Commission on Environmental Quality (TCEQ) that is proven to have emissions equivalent to or less than TxLED compliant fuel.
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