Exxon Mobil shut down the refinery in Joliet, Illinois, last month after a power outage when
In addition to Illinois, the waiver was approved by the EPA for Wisconsin, Indiana, and Michigan.
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Federal rules mandate the sale of low Reid Vapor Pressure gasoline during the summer months because a higher RVP evaporates more easily and can add to ozone pollution and smog. That is what is being waived temporarily, along with reformulated gasoline requirements for the four states. Reformulated gasoline is blended to burn more cleanly than conventional gasoline and to reduce pollutants in the air.
The waiver will continue through Aug. 20.
Gas prices in the four states spiked higher after the storms and all have gasoline that costs more than $3.45 a gallon, according to AAA. In Illinois, it's approximately $4 a gallon, which is currently among the highest prices in the country. Gas prices in California and Washington are over $4 a gallon, where higher gas prices are more typical.
The EPA and Department of Energy evaluated the situation, as required by law, and determined that granting a short-term waiver was in the public's best interest.
The EPA and DOE are continuing to actively monitor the fuel supply situation caused by the refinery shutdown and are considering additional measures to help alleviate its impact.