An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Fuels Registration, Reporting, and Compliance Help

In determining E200 and E300, will EPA allow D-86 distillation point averaging of gasoline grade data which is ± 20°F before graphing?

E200 and E300 values should be calculated separately for each batch of gasoline. If error bars are associated with distillation data for repeat tests on a given batch, the results may be averaged for the purposes of graphing and/or curve-fitting.(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)