Comment submitted by Cameron L. Cast, Director of Engineering, Edeniq Inc.

To Whom It May Concern, I am writing to express my strong support for the EPA’s proposed rulemaking regarding RFS Pathways II and Technical Amendments to the RFS 2 Standards. Particularly, I support that the definition of “crop residue” include corn kernel fiber. There is broad consensus on the need to increase cellulosic ethanol production and lower the carbon footprint of fuel. We have over 200 corn ethanol plants in the US, and utilizing cellulosic corn kernel fiber at these facilities is the first step and the fastest path to meaningfully move towards these goals. Companies like Edeniq have shown that there is technology available to begin cellulosic ethanol production, and it is ready to be deployed in the industry. Furthermore, as a stakeholder in the biofuels industry, I have directly seen the positive impact on the economy and jobs that the shift towards cellulosic fuels is driving. Lastly, this will help our country reduce its dependence on foreign oil and have a positive impact on the environment. I urge you to quickly finalize this critical rulemaking for the reasons listed above. Thank you for considering my views. Best Regards, Cameron L. Cast Director of Engineering Edeniq Inc. Visalia, CA