No. The regulatory method for oxygen testing, or the approved temporary method discussed in question 39, must be used for certification of reformulated gasoline produced at the refinery and also for blending oxygenate with RBOB. For further discussion of the exemption see the In-line Blending Section.(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)