Yes. Moreover, EPA believes that each separate tank of produced gasoline must be a separate batch, and that gasoline produced and contained in more than one tank may not be treated as a single batch.(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)