Ultra low-sulfur diesel fuel

Ultra low-sulfur diesel fuel means one of the following:
(1) For in-use fuels, ultra low-sulfur diesel fuel means a diesel fuel with a maximum sulfur concentration of 15 parts per million.
(2) For testing, ultra low-sulfur diesel fuel has the meaning we give in 40 CFR part 1065.

Source

40 CFR § 1039.801

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Scoping language

The following definitions apply to this part. The definitions apply to all subparts unless we note otherwise. All undefined terms have the meaning the Act gives to them. The definitions follow:

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