Direct Final Rule (PDF) (18 pp, 245K, published June 2, 2006) You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more. Fact Sheet: Refiner and Importer QualityAssurance Requirements forDownstream OxygenateBlending and Requirements forPipeline Interface (PDF)(7 pp, 231 K, May 2006, EPA420-F-06-039)