42 U.S.C. § 17021: Biomass-based diesel and biodiesel labeling

Each retail diesel fuel pump shall be labeled in a manner that informs consumers of the percent of biomass-based diesel or biodiesel that is contained in the biomass-based diesel blend or biodiesel blend that is offered for sale, as determined by the Federal Trade Commission. Biomass-based diesel blends or biodiesel blends that contain less than or equal to 5 percent biomass-based diesel or biodiesel by volume and that meet ASTM D975 diesel specifications shall not require any additional labels. Biomass-based diesel blends or biodiesel blends that contain more than 5 percent biomass-based diesel or biodiesel by volume but not more than 20 percent by volume shall be labeled “contains biomass-based diesel or biodiesel in quantities between 5 percent and 20 percent”. Biomass-based diesel or biodiesel blends that contain more than 20 percent biomass based or biodiesel by volume shall be labeled “contains more than 20 percent biomass-based diesel or biodiesel”. The term “ASTM” means the American Society of Testing and Materials. The term “biomass-based diesel” means biodiesel as defined in section 13220(f) of this title . the registration requirements for fuels and fuel additives under this section; and the requirements of ASTM standard D6751. The terms “biomass-based diesel blend” and “biodiesel blend” means a blend of “biomass-based diesel” or “biodiesel” fuel that is blended with petroleum-based diesel fuel.