This week's guest on Open Mic is Donnell Rehagen, CEO of the National Biodiesel Board. The renewable biodiesel industry has seen much growth in production capacity and market demand, but is still short of its 2022 goal of a tenth of domestic diesel volume.  This exclusive interview reveals a need for legislative attention to tax extenders, a continued call for a shift of tax benefits from producers to blenders and a desire for predictable volume standards from the EPA for biodiesel. Jeff NalleyDonnell Rehagen, CEO of the National Biodiesel Board