U.S. Department of Agriculture (USDA) agencies have been directed to use more biofuels. USDA agencies will adopt more vehicles that run on biodiesel or E-85, a blend of 85% ethanol and 15% gasoline. Agencies must fuel their vehicles with E-15, E-85, and biodiesel where available; prioritize the purchase of E-15 for gasoline vehicles without E-85 capability; and purchase renewable diesel blends for diesel vehicles without B-20 capability.
As of fiscal-year 2019, the USDA owns more than 16,000 flex-fuel vehicles that can operate on gasoline or E-85. The USDA also owns more than 3,700 diesel vehicles that can operate on biodiesel blends at appropriate locations. In addition, 14,000 gas vehicles are E-15-compatible. Although those flex-fuel and diesel fuel categories comprise more than half of the USDA fleet, biofuel consumption comprises less than 4% of USDA's annual fuel use.












