The Department for Transport has proposed the crop cap be set at 4% in 2018, decreasing incrementally until it reaches 2% by 2032. The NFU is calling for the cap, which governs the volume of crop-based biofuels allowed to be used on UK roads, to be set at the maximum possible level of 7%. Many other EU member states have opted for 7% – as per set out in the EU directive, leaving UK arable farmers at a competitive disadvantage.