U.S. Department of Energy | Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Office of Energy Efficiency and Renewable Energy

Biodiesel and Ethanol Definitions and Retail Requirements

Commercial biodiesel stock used for biodiesel blends must be at least 99% biodiesel (no more than 1% diesel fuel) and meet ASTM Standard D6751. Biodiesel blends must meet ASTM Standard D975. Biodiesel blends made available for public use at retail locations may not exceed 20% biodiesel (B20), and biodiesel blends containing more than 5% biodiesel (B5) must be labeled as a biodiesel blend at the pump.

Ethanol is defined as nominally anhydrous ethyl alcohol that meets ASTM Standard D4806. Ethanol blends made available for public use at a retail location must be labeled accordingly (e.g., E85).

(Reference Rules of the Tennessee Department of Agriculture 0080-5-12-.01, 0080-5-12-.02, and 0080-5-12-.03)

Jurisdiction: Tennessee

Type: Laws and Regulations

Technologies: Biodiesel, Ethanol

See all Tennessee Laws and Incentives.