You are here: U.S.: overview of gasoline quality specifications in PADD 2 statesPart 3: State gasoline quality regulations in PADD 2 states3.O: Wisconsin
3.O: Wisconsin
Wisconsin has one conventional gasoline formulation. In addition, federal reformulated gasoline (RFG) use is required in the Chicago/Milwaukee metro area, which extends into the southeastern corner of the state. That area is defined as Milwaukee, Kenosha, Racine, Washington, Ozaukee and Waukesha counties.
Fuel quality regulation is the responsibility of the state’s Department of Agriculture. Additionally, the federal Environmental Protection Agency (EPA) participates in the enforcement of RFG in the aforementioned six-county area.
The state’s fuel quality regulations adopt the Standard Specification for Automotive Spark-Ignition Engine Fuel as the state’s gasoline standard, in its ASTM D 4814-18b version. Additionally, state regulations establish:
    •Compliance with EPA waivers o
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3.O: Wisconsin