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 This website is no longer updated and links to external websites and some internal pages may not work.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

Will each compartment of a truck loaded at the rack at the refinery be deemed a different batch of reformulated gasoline and thus need a batch identification number? Could the invoice number serve as the unique identification number for that shipment?

In the case of reformulated gasoline produced by adding oxygenate to RBOB in a truck, each truck compartment is a separate batch of reformulated gasoline. If the oxygen standard is being met on average, the reformulated gasoline in each compartment must be given a different batch number. If a volume of reformulated gasoline is certified and designated as a batch and then loaded into a truck, multiple compartments could be filled with gasoline from that batch.

The invoice number may only be used for the batch number if it is six digits in length, unique for each batch produced in a year for each truck blender and generated in chronological and numerical order of production of the batch. Non-numeric characters are not allowed in the batch number.(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)