Biodiesel
Biodiesel means a mono-akyl ester derived from biomass and conforming to ASTM D675108, Standard Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels.
Source
40 CFR § 98.6
Scoping language
All terms used in this part shall have the same meaning given in the Clean Air Act and in this section.