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National and California - Removal of Reformulated Gasoline Oxygen Content Requirement and Revision of Commingling Prohibition to Address Non-Oxygenated Reformulated Gasoline

National and California - Removal of Reformulated Gasoline Oxygen Content Requirement and Revision of Commingling Prohibition to Address Non-Oxygenated Reformulated Gasoline
Basic Information
Legal Authorities
  • 42 U.S.C. §7546
Federal Register Citations
  • 71 FR 8973
  • 71 FR 8965
Code of Federal Regulations Citations
  • 40 CFR Part 80
Docket Numbers
  • EPA-HQ-OAR-2005-0170

On this page:

  • Rule Summary
  • Additional Resources

Rule Summary

These two rules amend the RFG regulations to remove the oxygen content requirement for RFG. Because the compliance date for the removal of the oxygen requirement is different for gasoline sold in California than for gasoline sold in the rest of the country, we are publishing two separate rules:

  • One rule removes the oxygen content requirement for RFG sold nationally (effective on May 6, 2006).
  • The other rule removes the oxygen content requirement for RFG sold in California (effective 60 days from publication of the rule); and

These rules also revise a current prohibition against commingling ethanol-blended VOC-controlled RFG with VOC-controlled RFG produced using other oxygenates. The revision is to prohibit commingling ethanol-blended VOC-controlled RFG with non-oxygenated VOC-controlled RFG, except under certain limited circumstances.

Additional Resources

  • Fact Sheet: Removal of Reformulated Gasoline Oxygen Content Requirement and Revision of Commingling Prohibition to Address Non-Oxygenated Reformulated Gasoline (pdf) (239 KB, February 2006, EPA420-F-06-020)
  • Direct Final Rule - National(pdf) (113 KB, published February 22, 2006)
  • Direct Final Rule - California (pdf) (90 KB, published February 22, 2006)

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Last updated on March 26, 2025
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