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EPA/AR RIN: 2060-AQ17 Publication ID: Spring 2010 
Title: ●Regulation To Prevent the Misfueling of Vehicles and Engines With Gasoline Containing Greater Than Ten Volume Percent Ethanol and Modifications to the Reformulated and Conventional Gasoline Programs 
Abstract: This rulemaking does two things. One, it will help prevent the misfueling of vehicles and engines not certified to operate on gasoline containing greater than 10 percent ethanol ("E10+"). We are proposing a rulemaking under the Clean Air Act section 211(c) to control and regulate distribution of fuels and fuel additives that may pose harm to the environment or public health. Vehicles or engines not certified or approved for E10+ may experience increased emissions of criteria pollutants and accelerated deterioration of emission control systems due to higher oxygen content from increased ethanol levels. These emissions increases will have an adverse effect on air quality and public health due to known relationships between regulated pollutants and the formation of ground level ozone. Furthermore, vehicles or engines operating on E10+ may experience operability issues leading to tampering of certified configurations designed to satisfy EPA emissions requirements. Two, this rulemaking modifies the Reformulated Gasoline ("RFG") and Anti-dumping programs (40 CFR part 80) to update the Complex Model allowing fuel manufacturers to certify batches of gasoline containing up to 15 percent ethanol ("E15"). These modifications are required for fuel manufacturers to sell E15. This rulemaking is necessary because of the proliferation of "blenderpumps"—fuel pumps that allow consumers with flex-fuel vehicles to select E10+ blend levels—and the Agency's pending waiver decision under the Clean Air Act section 211(f)(4) which, if granted, would allow the use of E15 ("E15 waiver"). Such a waiver and the current expansion of blender pumps create a need for a label to ensure that consumers do not fuel their vehicles or engines with unapproved fuels. This rule is urgently needed because of the speed that blender pumps are spreading and the possibility of the Agency rendering a decision on the E15 waiver as early as the summer of 2010. 
Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: Undetermined 
EO 13771 Designation: uncollected 
CFR Citation: Not Yet Determined     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: Not Yet Determined   
Legal Deadline:  None
Action Date FR Cite
NPRM  06/00/2010    
Final Action  12/00/2010    
Additional Information: SAN No. 5438.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Barry Garelick
Environmental Protection Agency
Air and Radiation
Washington, DC 20460
Phone:202 343-9028

Robert Anderson
Environmental Protection Agency
Air and Radiation
NVFEL, 2565 Plymouth Road,
Ann Arbor, MI 48105
Phone:734 214-4280