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In July, EPA issued a final action to qualify additional fuel pathways that the Agency has determined meet the lifecycle greenhouse gas (GHG) reduction requirements under the RFS program. Through this rulemaking, EPA determined that compressed natural gas, liquified natural gas, and electricity used as transportation fuel produced from certain sources of biogas are eligible to qualify for cellulosic or advanced renewable fuel credits (known as RINs). EPA also clarified the number of cellulosic biofuel RINs that may be generated for fuel made with feedstocks of varying cellulosic content, clarified the definition of crop residue under the RFS, and provided guidance regarding the feedstocks that EPA considers to be crop residues, including corn kernel fiber. These actions have the potential to provide notable volumes of cellulosic biofuel to the marketplace. EPA also finalized other minor amendments related to survey requirements associated with the ultra-low sulfur diesel (ULSD) program and misfueling mitigation regulations for 15 volume percent ethanol blends (E15).