Bill HB 2368 permits isobutanol to be used as an oxygenate in gasoline for on-road vehicles in Arizona. The new law takes effect in August 2017. While the law authorizes the use of isobutanol-blended gasoline for on-road vehicles, Gevo’s isobutanol is already being sold in Arizona for off-road applications such as boating, ATVs, motorcycles and landscape equipment.