As described in §80.45(c)(2), (d)(2), and (e)(2)(i), use of the winter version of the Complex Model requires that the RVP be set to 8.7 psi for both the baseline and target fuels. Thus the valid range limits associated with RVP are irrelevant for winter gasoline. (11/10/97)

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)