"The debate over American biofuels policy has centered on the Renewable Fuels Standard (RFS), but there’s another issue unfolding under the radar with significant implications for renewable fuels – the Reid vapor pressure (RVP) volatility waiver.
RVP may be a technical issue, but inconsistent application of the volatility waiver by the U.S. Environmental Protection Agency (EPA) is limiting widespread introduction of E15 ethanol-blended gasoline, threatening compliance with the RFS, and creating an arbitrary barrier to ethanol use in America.