There is no requirement that the results of downstream quality assurance sampling and testing must be reported to EPA. This is true both in the case of quality assurance sampling and testing by downstream parties such as pipelines or terminals, and in the case of quality assurance sampling and testing carried out by branded refiners or importers over their downstream branded operations.
The conduct of quality assurance sampling and testing programs, and the actions that are appropriate when violations are found through such a program, are discussed in the Remedies and Liability/Defenses Sections of this document.(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)