Diesel fuel

Diesel fuel means any fuel sold in any State or Territory of the United States and suitable for use in diesel engines, and that is one of the following:
(1) A distillate fuel commonly or commercially known or sold as No. 1 diesel fuel or No. 2 diesel fuel;
(2) A non-distillate fuel other than residual fuel with comparable physical and chemical properties (e.g., biodiesel fuel); or
(3) A mixture of fuels meeting the criteria of paragraphs (1) and (2) of this definition.

Source

40 CFR § 80.2

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Scoping language

Definitions apply in this part as described in this section.

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