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Renewable Fuel Standard Program

Final Rulemaking for Modifications to Fuel Regulations to Provide Flexibility for E15 and to Elements of the Renewable Identification Number Compliance System

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Rule Summary

On May 30, 2019, EPA finalized regulatory changes to allow gasoline blended with up to 15 percent ethanol (E15) to take advantage of the 1-psi Reid Vapor Pressure (RVP) waiver that currently applies to E10 during the summer months. EPA is also finalizing regulatory changes to modify certain elements of the renewable identification number (RIN) compliance system under the Renewable Fuel Standard (RFS) program, in order to bring greater transparency to the market and deter price manipulation.

Under the finalized expansion, E15 will be allowed to be sold year-round without additional RVP control rather than just eight months of the year.

The finalized reforms to RIN markets include:

  • Requiring public disclosure when RIN holdings exceed specified thresholds
  • Collecting additional data to improve market transparency and enhance EPA oversight

Additional Resources