Parties may use their own lab, an independent lab, or another party's lab in fulfillment of the quality assurance program defense element. Regardless of which lab does the work, however, the burden remains on the party who is presumed liable to demonstrate that the samples were properly collected and the testing was properly performed.(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)