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EPA proposes easing gasoline formulation

The Environmental Protection Agency (EPA) is proposing to make it easier for tank terminal operators to make the transition from winter- to summer-grade reformulated gasoline (RFG). This action will require tank terminals to accept only summer-grade RFG beginning April 15 of each year. Currently, there is not a specific date that terminals must begin receiving summer-grade RFG. However, tanks at terminals must contain only summer-grade RFG by May 1.

Terminal operators typically draw down their levels of winter-grade gasoline as May 1 approaches, causing an abrupt reduction in gasoline inventories. This proposal would increase the amount of time terminals have to make the changeover from winter- to summer-grade RFG. The proposal also requests comments on a number of transition alternatives associated with the RFG program. The proposal is available at

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