"Biodiesel fuel" means a fuel composed of mono-alkyl esters of long-chain fatty acids derived from vegetable oils or animal fats, designated B100, and meeting the requirements of ASTM D6751.
"Green diesel fuel" means a fuel produced from nonfossil renewable resources including agricultural or silvicultural plants, animal fats, residue and waste generated from the production, processing, and marketing of agricultural products, silvicultural products, and other renewable resources, and meeting applicable ASTM specifications.
"Feedstock" means the agricultural or other renewable resources, whether plant or animal derived, used to produce biodiesel or green diesel fuels.
"Producer" means any person, entity, or agricultural cooperative association, as defined in the Agricultural Cooperative Association Act (§ 13.1-312 et seq.) that, in a calendar year, produces in the Commonwealth up to two million gallons of biodiesel or green diesel fuels using feedstock originating domestically within the United States.
Any taxpayer entitled to a credit under this section may transfer unused but otherwise allowable credits for use by another taxpayer on Virginia income tax returns. A taxpayer who transfers any amount of the credit in accordance with this section shall file a notification of such transfer to the Department of Taxation in accordance with procedures and forms prescribed by the Tax Commissioner.
Va. Code § 58.1-439.12:02