In general, refiners, importers, and oxygenate blenders may not certify fuel at an oxygen level above the maximum cap of 2.7% by weight for VOC controlled RFG, or 3.5% by weight for non-VOC controlled RFG. The maximum oxygen content for RFG does not vary according to oxygenate type, nor will blending allowances be permitted. This may be modified by state petition under § 80.41(g). Also, oxygen content must otherwise be federally permissible. More specifically, under the substantially similar interpretive rule (56 FR 5352, February 11, 1991), oxygen content is limited to 2.7% by weight unless waived under section 211(f) of the Clean Air Act.(7/1/94)
This question and answer is posted at http://www.epa.gov/otaq/regs/fuels/rfg/qa/420r03009.pdf. The original was posted in the Q&A posted on 7/1/94 which can found at http://www.epa.gov/otaq/rfg_qa.htm" See Question ID 3857 for RFG (Taken from the first question on http://www.epa.gov/otaq/regs/fuels/rfg/qa/420r03009.pdf)
What is the maximum oxygen content a refiner, importer or blender may certify, including blending allowances? Does this maximum oxygen content vary according to oxygenate type?
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