Registration and Health Effects Testing
The Clean Air Act provides EPA with the authority to regulate fuels and fuel additives in order to reduce the risk to public health from exposure to their emissions. The regulations at 40 CFR Part 79 (from the U.S. Government Printing Office) require that each manufacturer or importer of gasoline, diesel fuel, or a fuel additive, have its product registered by EPA prior to its introduction into commerce. Registration involves providing a chemical description of the product and certain technical, marketing and health-effects information. This allows EPA to identify the likely combustion and evaporative emissions. In certain cases, health-effects testing is required for a product to maintain its registration or before a new product can be registered. EPA uses this information to identify products whose emissions may pose an unreasonable risk to public health, warranting further investigation and/or regulation.
- Regulations for term "Substantially Similar"
- List of Registered Fuels and Fuel Additives
- Notices
- Regulations
- Archived Regulations
NOTE: You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.
Regulations for term "Substantially Similar"
- 1981 Interpretive Rule for the term "Substantially Similar" (PDF) (16 pp, 81K)
- 1991 Interpretive Rule for the term "Substantially Similar" (PDF) (12 pp, 420K)
- Waiver Summary Document (PDF) (4 pp, 15K)
List of Registered Fuels and Fuel Additives (Updated: August 2009)
- Alphabetical List of Registered Gasoline and Diesel Additives
- List of Registered Motor Vehicle Gasolines and Motor Vehicle Diesel Fuels
- List of Registered Gasoline Additives
- List of Registered Diesel Additives
- List of Certified Detergent Additives
- List of Registered Biodiesel Fuels
Contacts: Jose Solar at 202-343-9027 or solar.jose@epa.gov, Jaimee Dong at 202-343-9672 or dong.jaimee@epa.gov, or Jim Caldwell at 202-343-9303 or caldwell.jim@epa.gov
Notices
- 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 is extending 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 (see below), the public comment period was set to end on May 21, 2009. The purpose of this document is 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.
Contact: Robert Anderson at 202-343-9718 or anderson.robert@epa.gov
- Notice | PDF Version (2 pp, 75K, published May 20, 2009)
- Notice of Receipt of a Clean Air Act Waiver Application to Increase the Allowable Ethanol Content of Gasoline to 15 Percent; Request for Comment (published April 21, 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.
Contact: Jim Caldwell at 202-343-9303 or caldwell.jim@epa.gov
- Notice | PDF Version (3 pp, 77K)
Regulations
- Regulation of Fuels and Fuel Additives: Revised Definition of Substantially Similar Rule for Alaska (published April 25, 2008)
Discussions with an Alaskan refiner have highlighted the need for an amendment to the substantially similar provision of Section 211(f) of the Clean Air Act for unleaded gasoline to improve cold starting of vehicles in Alaska during the winter months. Currently, manufacturers of gasoline for Alaska may not use a temperature below 41 degrees Celsius when testing the vapor-liquid (V/L) ratio of the fuel and still be within the current definition of “substantially similar.” This amendment will allow manufacturers producing unleaded gasoline for use only in Alaska during the winter months to use a minimum test temperature of 35 degrees Celsius when testing for a maximum V/L ratio of 20 instead of requiring a V/L test temperature of 41 degrees Celsius.
Contact: Jaimee Dong at 202-343-9672 or dong.jaimee@epa.gov
- Direct Final Interpretive Rule | PDF Version (5 pp, 126K )
- Proposed Interpretive Rule | PDF Version (3 pp, 91K)
- Fuel & Fuel Additive Registration Rule Summary (PDF) (9 pp, 102K)
- Final Rule: Revision to the Requirements on Variability in the Composition of Additives Certified Under the Gasoline Deposit Control Program (published November 14, 2005)
This final rule issues a revision to the requirements on variability in the composition of additives certified under the gasoline deposit control program and addresses comments we received on this revision as proposed in the previous Notice of Proposed Rulemaking and as contained in the parallel Direct Final Rule. (See related rulemakings.)- Fact Sheet: Final Rule Revising the Requirements on Variability in the Composition of Additives Certified Under the Gasoline Deposit Control Program | PDF Version (2 pp, 43K, EPA420-F-05-014, November 2005)
- Final Rule | PDF Version (7 pp, 172K)
Contact: Jeff Herzog at 734-214-4227 or herzog.jeff@epa.gov
- Revision to the Requirements on Variability in the Composition of Additives Certified Under the Gasoline Deposit Control Program (published November 5, 2001)
The direct final rule issues a revision to the requirements on variability in the composition of additives certified under the gasoline deposit control program.- Direct Final Rule | PDF Version (6 pp, 54K)
- Proposed Rule | PDF Version (3 pp, 42K)
Contact: Jeff Herzog at 734-214-4227 or herzog.jeff@epa.gov