The regulations do not specify where the compositor should be located; however, the location of the compositor will determine what qualifies as the certified batch. The refiner should include the location of compositors in their petition for a waiver as stated in § 80.65(i)(7).(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)