Replies to post #4818 on Slap that Ask

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$GEVO "Before Gevo's ATJ could be sold to airlines, it had to pass a series of technical and safety tests. After six years of rigorous performance assessments conducted by ASTM International, including extensive engine testing and data analysis by all of the major original equipment manufacturers, the $GEVO "ASTM D7566 specification was revised to include Gevo's ATJ in April of 2016. The revision includes ATJ derived from renewable isobutanol, regardless of the carbohydrate feedstock (i.e. cellulosics, corn, sugar cane, molasses, etc.). For more on Alaska Airlines flying with Gevo?s cellulosic renewable ATJ"
http://www.gevo.com/our-markets/jet-fuel/