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 This website is no longer updated and links to external websites and some internal pages may not work.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

When the independent lab samples a batch of RFG, they are to "determine" blending times, batch volumes, tank numbers, and grade. Which of these determinations must be independently made by the independent lab, and which can be obtained from the refiner or

The independent lab may rely on the refiner's or importer's representations with regard to the date and time the batch became finished RFG, and the grade of gasoline, if this reliance is warranted in the exercise of the independent lab's best professional judgment.

This reliance would, of course, not be warranted where the independent lab has reason to believe the information supplied is incorrect. The independent lab is required to independently establish the identification number of the storage tank, and the batch volume as discussed in Question 19 of this 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)