There are situations where ethanol will be present in very small quantities in RFG produced using other oxygenates. For example, ETBE often contains very small amounts of ethanol, less than 2%. As a result, will EPA apply a de minimis exception to the pro
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Section 80.78(a)(8) prohibits the mixing of VOC-controlled RFG produced using ethanol with VOC-controlled RFG produced using any other oxygenate during the period January 1 through September 15. EPA will not consider this prohibition violated, however, in the case of…