Alternative Fuel Use Requirement
At least 50% of state vehicles using petroleum diesel fuel must use a minimum blend of 5% biodiesel (B5) or other biofuel approved by the U.S. Environmental Protection Agency as a fuel or fuel additive. This requirement does not apply to any state vehicles for which the use of biodiesel or other biofuel will void the manufacturer’s warranty for that vehicle. Biodiesel fuel is defined as a fuel composed of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats that is designated B100 or a blend of biodiesel that meets the requirements of ASTM Standard D6751. Additionally, bi-fuel and flexible fuel vehicles capable of operating on either alternative fuel or conventional fuel must use alternative fuel when it is available.