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 This website is no longer updated and links to external websites and some internal pages may not work.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

The regulations state that no person may combine any RFG with any non-oxygenated blendstock unless that person meets each requirement specified as a refiner. Does this mean that if any such blending is done at a terminal then they would be required to hav

The addition of a blendstock to certified RFG, or the combination of several blendstocks to produce RFG, would result in the blender becoming a refiner under the RFG regulation with all the testing, certification and other requirements under the regulation. Metering at the terminal is not an acceptable substitute for the sampling and testing requirements for a refiner.(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)