7 Governors Ask EPA to Remove RVP Limit on E15
by Erin Voegele (Ethanol Producer Magazine) On Sept. 13, the governors of Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota and South Dakota sent a letter to EPA Administrator Gina McCarthy asking her to remove the Reid vapor pressure (RVP) limit on E15. The letter explains the RVP is a significant regulatory obstacle that is preventing large-scale availability to use of E15 and mid-level ethanol blends.
“EPA’s disparate handling of E10 and E15 with regard to fuel volatility regulation is stifling the widespread adoption of E15 and mid-level ethanol blends,” said the governors in the letter. While E10 currently receives a 1-pound-force per square inch (psi) RVP waiver during the summer blending season, E15 does not. “This inequitable RVP treatment of E10 and E15 has no scientific basis since E15 and higher blends are lower in volatility than E10 when blended with the same base gasoline,” the governors.
“We strongly urge you to take immediate action to establish a volatility regime that allows a uniform gasoline blendstock to be suitable for blending both E10 and E15 (and higher blends) year round.”
According to the governors, ensuring that the same base gasoline may be blended to create E10 and E15 year round is one step that EPA can take immediately to stimulate a rapid increase in E15 consumption, driving ethanol use well beyond the so-called E10 blendwall.
“EPA has the statutory authority to eliminate this unnecessary regulatory hurdle,” said the governors. “We strongly urge you to act now to correct the unfair RVP treatment for E15. We would welcome the opportunity to discuss this important issue in greater detail.”
The letter was signed by Iowa Gov. Terry Branstad, Kansas Gov. Sam Brownback, Minnesota Gov. Mark Dayton, Missouri Gov. Jeremiah Nixon, Nebraska Gov. Pete Ricketts, North Dakota Gov. Jack Dalrymple, and South Dakota Gov. Dennis Daugaard.