On June 26, 2018, EPA issued proposed renewable volume obligations (RVOs) under the RFS for cellulosic biofuel, advanced biofuel, and total renewable fuel for calendar year 2019. EPA also proposed biomass-based diesel volume obligations for calendar year 2020. The RFS requires EPA to annually update these requirements to the volumes set forth in the RFS provisions of the Clean Air Act, but EPA can reduce the volume requirements under certain conditions, taking into account cellulosic biofuel availability, domestic supply, and severe economic harm. The proposal does not address several recent highly contentious RFS issues — eliminating summertime limits on use of E15, changing rules for biofuels exports, undertaking a statutorily mandated “reset” of the RVOs, or addressing the D.C. Circuit’s invalidation of the 2016 RVOs. Another hotly debated issue is whether the agency will reassign to large refiners mandates that have been waived for small refineries. EPA does not propose this here; instead it notes that it has not yet granted any exemptions for 2019 but “is maintaining its approach that any exemptions for 2018 that are granted after the final rule is released will not be reflected” in the final 2019 standards. EPA is also requesting input on a future rulemaking to address market manipulation and fraud related to trading and banking renewable fuel credits through the use of Renewable Identification Numbers (RINs).