The Missouri mandatory E10 law is HB 1270 & 1027. The rule is CSR 110-3.010 - Missouri Renewable Fuel Standard. The best attribute of this law is that it exempts all of the standard constituents that need it and it even has a blanket exemption for premium unleaded. The unfortunate feature of this bill is that it has no requirement for labeling pumps. Pump labeling is governed by rule CSR 90-30 and I can find nothing in there requiring ethanol labeling of gas pumps. There is a strong movement in Missouri to repeal this bill. It also has an escape clause that when ethanol gets more expensive than gasoline, the mandate is suspended.
Every mandatory E10 state has exemptions to their blending law, because there are a number of piston engine applications that should not, and some that cannot, use ethanol blended gasoline. Unfortunately the exemptions are not uniform. They vary from only one exemption in Washington, aircraft, to a universal exemption of premium unleaded in Missouri. All states exempt aircraft usage, but most states like Oregon and Washington make it almost impossible to get unblended gasoline. Oregon is the only state that allows for unblended regular and premium gasoline for the exemptions, and then makes it almost impossible to get any unblended gasoline. All other mandatory ethanol states just allow clear premium unleaded gasoline for the exempted classes.
The following piston engine applications should not use ethanol blended gasoline:
We are looking for people willing to work on legislation in each state to prohibit the blending of ethanol into premium unleaded gasoline and requiring the accurate labeling of pumps that dispense ethanol.
If you are interested in supporting the Coalition please email us, or use the contact button above, and we will add your name in the state list below. You will be able to contact others in your state with a similar interest.
If you need information, with references, in order to frame arguments against ethanol blending, use these Talking Points.