A party who meets the definition of oxygenate blender is not required to have the gasoline it produces sampled or tested by an independent lab. However, an oxygenate blender is required to sample and test the gasoline it produces: every-batch sampling and testing in the case of terminal storage tank oxygenate blending, and periodic sampling and testing at specified frequencies in the case of truck splash blended oxygenate.
This oxygenate blender sampling and testing requirement could be met if performed by an independent lab, but an independent lab is not required. The sampling and testing requirements for oxygenate blenders are discussed in the Downstream Oxygen Blending Requirements Section 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)