Another concern Drevna shared was how the increased RFS could complicate the banking and trading of RFS credits, or RINs. Drevna was not sure whether there would be enough tradable credits for ethanol in 2009. "Each volume of renewable fuel produced is assigned a RIN that is separated from that physical volume when it is blended into the fuel supply. Refiners then buy that RIN credit from the terminal doing the blending and use it for RFS compliance…
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