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Section 80.78(a) requires segregation of several categories of gasoline and precludes the mixing of any amount of the gasolines that must be segregated. EPA recognized the difficulty in changing the service of a storage tank as a result of tank heels, and

See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help.

A party who follows the procedures for dealing with the change of service for a gasoline storage tank, or for dealing with pipeline interface mixtures, that are described in the Question and Answer Document will be considered by EPA to be acting in a manner that is consistent with the segregation requirements expressed in the regulations.(8/29/94)

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)