The Clean Air Act requires that all conventional gasoline on average be at least as clean as it was in 1990 regardless of who produces the conventional gasoline. Therefore, all refiners and importers are subject to requirements that ensure the quality of their conventional gasoline beginning in 1995. Refiners and importers of conventional gasoline could provide "dirtier" gasoline if not specifically prohibited, regardless of whether they produce or import RFG. Therefore, neither the statute nor the regulations provide for exceptions to these requirements.(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)