The Missouri Renewable Fuel Standard Act
On January 1, 2008, the Missouri Renewable Fuel Standard becomes effective. Under this standard, all gasoline offered for sale in Missouri must contain 10% ethanol.
A few exemptions to the standard will allow gasoline without ethanol to be sold:
- When ethanol blends purchased at wholesale exceed the price of gasoline
- When selling premium unleaded gasoline with an octane rating of 91 or higher
- Gasoline sold at airports
- Gasoline sold at marinas
Although premium is exempted from the requirement, it may be blended with ethanol.
Missouri does not require ethanol labeling on gasoline dispensers. Therefore, if a consumer has a specific application that requires a fuel without ethanol, the consumer must purchase premium unleaded gasoline with an octane of 91 or higher that is also advertised as not containing ethanol.
Retail Service Station Operators
It is important for service station operators and wholesale consumer users to prepare storage tanks by removing water and sediment and installing 10 micron filters before the introduction of any ethanol blends into these tanks. This will ensure the quality of the product is preserved.
A guide for the retailer can be found here… Ten Things Missouri Tank Owners and Operators Need to Know About Ethanol - Store Operator Checklist 
Related links
Missouri Renewable Fuel Standard Act Chapter 414.255
Missouri Renewable Fuel Standard Regulations 2 CSR 110-3.010
The Final Rule was delivered to the Secretary State on November 26, 2007 and will appear in the Missouri Register on January 2, 2008. It is the intent of the department to file an emergency rule so the rule will become effective on January 1, 2008.
Missouri Fuel Quality Law Chapter 414
Missouri Fuel Quality Regulations 2 CSR 90-30.040
