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Fuels and Fuel Additives


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  • Notice: Regulation of Fuel and Fuel Additives: Requests for Modification of Octamix Waiver. EPA has recently approved modifications to the Octamix waiver that allow the use of two new corrosion inhibitors.

  • Partial Grant and Partial Denial of Clean Air Act Waiver Application Submitted by Growth Energy to Increase the Allowable Ethanol Content of Gasoline to 15 Percent; Decision of the Administrator
    EPA reviewed the March 2009 application from Growth Energy, available test data and public comments on the waiver request. On October 13, 2010, EPA determined that, subject to compliance with all of the conditions listed in the waiver decision, a gasoline produced with greater than E10 and no more than E15 will not cause or contribute to a failure of certain motor vehicles to achieve compliance with the emission standards to which they have been certified over their useful lives. Therefore, EPA partially and conditionally granted the waiver request application submitted by Growth Energy for its gasoline-ethanol blend with no more than 15 vol% ethanol.

  • Notice of Receipt of a Clean Air Act Waiver Application to Increase the Allowable Ethanol Content of Gasoline to 15 Percent; Extension of Comment Period (published May 20, 2009)
    EPA extended the comment period related to a waiver application to increase the allowable ethanol content of gasoline to 15 volume percent. Under the Federal Register Notice, published April 21,2009, the public comment period was set to end on May 21, 2009. The purpose of this document was to extend the comment period an additional 60 days until July 20, 2009. This extension of the comment period is provided to allow the public additional time to respond to the legal and technical issues raised in the application.

  • Notice of Receipt of a Clean Air Act Waiver Application to Increase the Allowable Ethanol Content of Gasoline to 15 Percent; Request for Comment (signed April 15, 2009)
    EPA has received a request for a waiver under section 211(f)(4) of the Clean Air Act for ethanol blends up to 15 volume percent (E15). The Administrator must make a decision on the waiver application within 270 days of receipt. Since the application was received on March 6, 2009, it must be granted or denied by December 1, 2009. The Federal Register Notice announces receipt of the request in order to solicit public comment that will assist the Administrator in reaching her decision.

  • Alternative Tier 2 Health Effects Testing Requirements for Baseline Gasoline and Non-baseline (oxygenated) Gasoline groups under Section 211(b) of the CAA. Letter to the American Petroleum Institute (API) Test Group Consortium. Examples of oxygenated gasoline groups include methyl tertiary butyl ether (MTBE), ethyl tertiary butyl ether (ETBE), alcohols. Reports for the testing requirements have been submitted to EPA. These reports can be found in the Federal Docket Management System (FDMS) at EPA-HQ-OAR-2003-0065

  • Gasoline Additive MMT Health Effects Testing under Section 211 (b) of the CAA. MMT is a gasoline octane enhancer produced by the Afton Chemical Corporation (Afton), formerly known as the Ethyl Corporation. MMT is allowed in U.S. gasoline at a level equivalent to 1/32 grams per gallon manganese (gpg Mn).

If you have questions or request information, please contact the appropriate support or help line found on the Support & Help page.

Please visit EPA's Transportation and Air Quality web-based repository of mobile source documents, Document Index System (DIS). This searchable repository contains regulations, Federal Register notices, policy letters, and guidance documents.

Please visit our Related Links page for other fuel related information within EPA, other U.S. Agencies, and other fuel related websites.

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