Current Regulations: Federal RFG is required in Milwaukee-Racine, summer and winter.

EPA released an enforcement discretion letter dated October 10, 2003 to permit the sale of conventional gasoline in the Milwaukee-Racine RFG covered area until midnight on October 13.

Signed by the Governor on August 11, 2003, SB 117 caps MTBE at 0.5 vol% in gasoline beginning August 1, 2004. See Wisconsin Administrative Code ATCP 94.210(1)(g). 

In a multi-state letter dated 8/31/17, to address a fuel supply emergency caused by Hurricane Harvey, EPA waived RFG requirements and allowed 11.5 psi RVP gasoline throughout the state through September 15.  In a multi-state letter dated 9/7/17, EPA extended the RFG waiver through September 26.  

Wisconsin's regulations include ASTM D 4814 for gasoline and ASTM D 975 for diesel fuel. See Wisconsin Administrative Code ATCP 94.200(1)(g), 94.210(1)(c), 94.200(1)(c), and 94.240(1).

Legislature: Introduced in Jan. 2003 and Feb. 2003 respectively, SB 13 and AB 33 would require minimum ethanol blends in gasoline sold outside of ozone nonattainment areas: 3 vol% by 7/1/04, 6 vol% by 7/1/06, and 10 vol% by 7/1/08.

AB 15 and SB 15, introduced in January 2005, would require gasoline (with some exceptions) to contain 9.2 - 10.0 vol% ethanol. Amended AB 15 was passed by the Assembly on 12/15/05.

Introduced in January 2008, AB 682 and SB 380 would require a person who sells at least 40 million gallons/year of motor vehicle fuel to use renewable fuel (ethanol, biodiesel, hydrogen produced using wind power), at least 10% beginning in 2009, increasing to 25% in 2025. At least, 5% biodiesel beginning in 2009 would be required if the total volume of biodiesel sales in WI in 2007 is less than 40 million gallons.

Introduced in August 2009, AB 408 and SB 279 include a requirement that a motor fuel grantor offer unblended gasoline, suitable for subsequent blending with ethanol and subsequent sale, to any motor fuel dealer with which it has a motor fuel dealership agreement (see Section 47).

AB 649 and SB 450, both introduced in January 2010, would require a Low Carbon Fuel Standard to reduce the carbon intensity of transportation fuels if an advisory group to the Midwest Governors Association makes recommendations that are endorsed by a majority of the governors. The LCFS must be consistent with the advisory group's recommendations. See section 278. 

Last updated September 2017