Montana Incentives and Laws
Ethanol Blend Mandate
All gasoline sold to consumers for use in motor vehicles operating on public roads must be blended with 10%, by volume, of agriculturally derived, denatured ethanol, within one year after the Montana Department of Transportation has certified that the state has produced 40 million gallons of ethanol and has maintained that level of production on an annualized basis for at least 3 months. If the production of ethanol in Montana drops below 20 million gallons on an annualized basis, the 10% blend requirement does not apply. All gasoline sold as E10 may not contain more than trace amounts of the additive methyl tertiary butyl ether. (Reference Montana Code Annotated 82-15-121)
