On July 25, 2017, the National Biodiesel Board (NBB) announced that the California Air Resource Board (CARB) certified a biodiesel additive that will make California B20 blends the cleanest diesel fuel with the lowest emissions profile available in the U.S.  The additive known as Branded VESTA™1000 reduces every measurable regulated emission, including nitrogen oxides (NOx), when blended with CARB diesel fuel, California’s unique clean-burning biodiesel formulation.  A 20 percent blend of biodiesel with the additive reduced NOx by 1.9 percent and particulate matter by 18 percent compared to CARB diesel.  The certified additive ensures compliance with CARB’s Alternative Diesel Fuel Regulation, which goes into effect on January 1, 2018.  NBB led the initial research and development of the additive.