The US Environmental Protection Agency has denied a request submitted by the State of Texas to reduce the corn ethanol requirements of the Renewable Fuels Standard (RFS).

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I can't quite put my finger on it yet... but it appears that the State of Texas has an agenda against non-petroleum based fuels.

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A few months ago, Texas Commission on Environmental Quality (TCEQ) all but banned the sale of B20 Biodiesel without some special and costly additive to reduce NOx levels.

The Austin Chronicle: News: Biodiesel Industry Fumes Over State's Heavy Hand

https://www.dieselbombers.com/altern...io-diesel.html