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 This website is no longer updated and links to external websites and some internal pages may not work.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

What is a satisfactory quality assurance program that ensures oxygenates are being added to RBOB at a non-proprietary terminal?

For refiners and importers who wish to claim the actual oxygenate type and amount blended with RBOB, a program of contractual controls and quality assurance sampling and testing over the downstream oxygenate blending operation must be carried out. Under §§ 80.69(a)(6) and (7), a quality assurance sampling and testing program must be carried out at the facilities of each oxygenate blender who blends any RBOB with any oxygenate. The testing methodology used must be consistent with § 80.46(g). Section 80.69 specifies, among other things, mandatory sampling and testing rates and where samples must be taken.

Refiners and importers have a second compliance option which allows them to make certain default assumptions regarding the type and amount of oxygenate blended downstream. Rather than claim the actual amount of oxygenate blended, these parties make certain default ("worst case") assumptions regarding the type and amount of oxygenate blended downstream. Under §80.69(a)(8), these assumptions are in lieu of the contractual and quality assurance requirements of §§ 80.67(a)(6) and (7).(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)