(1) As used in this section, "biodiesel fuel" means a biodegradable, combustible liquid fuel derived from renewable fats and vegetable oils that meets ASTM International specification D6751 and is suitable for blending with petroleum-based diesel fuel for use in diesel engines.
(2) The General Assembly strongly encourages that, beginning on January 1, 2006, all diesel fuel sold or offered for sale in the Commonwealth and reformulated to achieve federally mandated sulfur reduction requirements use biodiesel in a blend not less than two percent (2%) by volume to meet those requirements.