RFG that is designated as VOC controlled by the refiner must use the summer model and must comply with the RVP standard for the appropriate VOC control region. RFG that is designated as non-VOC controlled by the refiner must use the winter model. Refiners may not designate RFG as VOC controlled unless it meets the federal RVP standard for VOC controlled RFG for the appropriate VOC control region. Consequently, California RFG produced to 7.8 psi for use outside the federal VOC control period (i.e., before May 1 and after September 15) would use the winter model. (5/9/95)
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 5/9/95 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)
Should the summer toxics model be used for RFG during the 1995 California VOC transition seasons (i.e., before May 1 and after September 15) when California regulations limit RVP to 7.8 psi?
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