U.S. Environmental Protection Agency (EPA) Administrator Lisa Jackson signed on November 30, 2012, a supplemental rule associated with the Renewable Fuel Standard (RFS) Program. The final rule contains a lifecycle greenhouse gas (GHG) analysis for grain sorghum ethanol and a regulatory determination that grain sorghum ethanol qualifies as a renewable fuel under the RFS Program. According to the rule, EPA’s analysis indicates that ethanol made from grain sorghum at dry mill facilities that use natural gas for process energy meets the lifecycle GHG emissions reduction threshold of 20 percent compared to the baseline petroleum fuel it would replace, and therefore qualifies as renewable fuel. The rule also includes EPA’s regulatory determination that grain sorghum ethanol produced at dry mill facilities, using specified forms of biogas for both process energy and most electricity production, has lifecycle GHG emission reductions of more than 50 percent compared to the baseline petroleum fuel it would replace, and that such grain sorghum ethanol qualifies as an advanced biofuel under the RFS Program. The rule will take effect when it is published in the Federal Register.
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