In the European Union, certain less-developed countries are favoured through the Generalised System of Preferences (GSP) and get duty-free access to the EU's market for ethanol and bio-diesel exports. In the United States, the import of biofuels is more restricted, ethanol imports for instance currently face an added duty of USD 0.14/1. The RED defines minimum GHG savings for biofuels as well as additional Page | 36 environmental criteria and social standards for the sustainable production of biofuels and feedstocks.