This is about the Americans blending biofuel into its standard supply of petrol…
The U.S. Environmental Protection Agency set a new renewable fuels standard of 4.66 percent to meet a federal mandate that at least 5.4 billion gallons of renewable fuels be blended into transportation gasoline in 2008.
Under the Energy Policy Act of 2005, the EPA is responsible for regulations to ensure that gasoline sold in the U.S. contains a minimum volume of renewable fuel.
A thousand thanks to the Matter Network for that…