Michigan Compiled Laws, Chapter 285. Agriculture § 285.341

(a) “Alternative fuel” means a fuel composed of biomass or another fuel that does not have petroleum as a base or a blend of a nonpetroleum-based fuel and a petroleum-based fuel. Alternative fuel may include, but is not limited to, biodiesel and ethanol.

(b) “Biodiesel” means a fuel composed of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats and, in accordance with standards specified by the American society for testing and materials, designated B100, and meeting the requirements of D6751, as approved by the department.

(c) “Biomass fuel” means a fuel made from plant material, vegetation, or agricultural waste.

(d) “Department” means the Michigan department of agriculture.

(e) “Ethanol” means a substance that meets the American society for testing and materials standard in effect on the effective date of this act as the D4806 specification for denatured fuel grade ethanol for blending with gasoline.