Jump to main content or area navigation.

Contact Us

Fuels and Fuel Additives

Regulations and Standards


Regulations and Standards

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.


Regulation of Fuel and Fuel Additives:

Relaxation of Summer Gasoline Volatility Standard for Florida and the Raleigh-Durham-Chapel Hill Area (Triangle Area) and the Greensboro/Winston-Salem/High Point Area (Triad Area) in North Carolina (final action published May 22, 2014): The EPA is taking final action to relax the federal volatility (RVP) standard applicable to summer gasoline supplied to three areas in Florida (Miami, Tampa and Jacksonville) and the Triangle and Triad Areas in North Carolina from 7.8 pounds per square inch (psi) to 9.0 psi. The final action will be effective on May 30, 2014.

Alternative Test Method for Olefins in Gasoline (published January 31, 2011): This action proposes to allow for an additional alternative test method for olefins in gasoline, ASTM D6550-05. The allowance of this additional alternative test method will provide more flexibility to the regulated industry.

Proposed Regulation of Fuels and Fuel Additives: Federal Volatility Control Program in the Denver-Boulder-Greeley-Ft. Collins-Loveland, Colorado, 1997 8-Hour Ozone Nonattainment Area (published August 24, 2009): This notice proposes establishing an applicable standard of 7.8 pounds per square inch (psi) Reid vapor pressure (RVP) under the federal volatility control program, in the Denver-Boulder-Greeley-Ft. Collins-Loveland, Colorado, 1997 8-hour ozone nonattainment area. This standard would apply during the high ozone season - June 1st to September 15th of each year- beginning in 2010. The standard in Denver, Douglas and Jefferson counties, and portions of Adams, Arapahoe, Boulder and Broomfield counties is currently 7.8 psi RVP. This action would expand the requirement to use 7.8 psi RVP gasoline throughout Adams, Arapahoe, Boulder and Broomfield counties, and into portions of Larimer and Weld counties.

Direct Final Rule Approving Relaxation of Summer Gasoline Volatility Standard for Grant Parish Area (signed February 7, 2008): EPA is taking direct final action to relax the federal volatility (RVP) standard applicable to summer gasoline supplied to the Grand Parish, Louisiana area from 7.8 pounds per square inch (psi) to 9.0 psi.

Proposed Relaxation of Summer Gasoline Volatility Standard for Denver/Boulder Area: EPA proposed to change the federal volatility (RVP) standard applicable to summer gasoline supplied to the Denver/Boulder area from 7.8 pounds per square inch (psi) to 9.0 psi. This rule was not finalized due to air quality concerns.

Volatility Regulations for Gasoline and Alcohol Blends: EPA established a two-phase reduction in summertime commercial gasoline volatility. These rules reduce gasoline emissions of volatile organic compounds (VOC) that are a major contributor to ground-level ozone (smog). Phase I was applicable to calendar years 1989 through 1991. Depending on the state and month, gasoline RVP was not to exceed 10.5 psi, 9.5 psi, or 9.0 psi. Phase II is applicable to 1992 and later calendar years. Depending on the state and month, gasoline RVP may not exceed 9.0 psi or 7.8 psi. See EPA Guide to Federal and State RVP Standards. EPA provides a 1.0 psi RVP allowance for gasoline containing ethanol at 9 to 10 volume percent.

  • Final Rule: Volatility Regulations for Gasoline and Alcohol Blends Sold in Calendar Years 1992 and Beyond. 55 FR 23658, June 11, 1990 (electronic version not available).
  • Final Rule: Volatility Regulations for Gasoline and Alcohol Blends Sold in Calendar Years 1989 and Beyond. 54 FR 11868, March 22, 1989 (electronic version not available).

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.

This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
For more: About Us | Get E-mail Updates | Browse the A to Z Subject Index.

Jump to main content.