Missouri lawmakers are weighing a challenge to a proposed rule that could allow greater amounts of ethanol in gasoline.
A legislative committee scheduled a hearing Monday on whether the proposed rule change by the state Department of Agriculture exceeds what is allowed under state law.
A 2006 Missouri law requires standard gasoline to contain 10 percent ethanol, which typically is produced from corn.
The state Agriculture Department implemented that law with a rule stating the ethanol blend shall not exceed 10 percent, except in certain cases. The department is proposing to repeal that cap and instead allow a 15 percent ethanol blend to be voluntarily sold.
The federal Environmental Protection Agency is fine with E15, but some automakers warn it could harm engines.