['Air Programs']
['Air Emissions']
10/12/2023
...
(a) Overview. Except as specified in �1090.300(a), diesel fuel must meet the ULSD per-gallon standards of this section.
(b) Sulfur standard. Maximum sulfur content of 15 ppm.
(c) Cetane index or aromatic content. Diesel fuel must meet one of the following standards:
(1) Minimum cetane index of 40.
(2) Maximum aromatic content of 35 volume percent.
[85 FR 78469, Dec. 4, 2020]
['Air Programs']
['Air Emissions']
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