Under § 80.78(a)(8), no person may combine VOC-controlled RFG produced using ethanol with VOC-controlled RFG produced using any other oxygenate during the period of January 1 through September 15 of each year. This prohibition applies at all locations in the gasoline distribution system, including at retail outlets and wholesale purchaser-consumer facilities.(7/1/94)

This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (PDF)(333 pp, 18.17 MB, EPA420-R-03-009, July 2003, About PDF)