The Environmental Protection Agency released a final rule September 14 that will require that 1.28 billion gallons of biodiesel be introduced into the national fuel supply in 2013. The agency expressed confidence that its 1.28 billion gallon mandate can be met, especially given that biodiesel producers are already producing 1.3 billion gallons of fuel a year. The rule will create $41 million in energy security benefits and between $19 and $52 million in air quality benefits, according to the agency’s estimates.